Statistics and Probability questions and answers in February 2023

Vaccine Max Temp Chall 1 None 103.5 2 None 104.5 3 None 104.8 4 None 104.9 5 None 105.1 6 None 103.9 7 None 103.7 8 None ?...

Explain the results of the multivariate regression. For each multivariate regression performed, address the following: Why did you choose your selected independent variables? Explain the regression mo...

. In clinical experiments involving distinct groups of independent samples, it is important that the groups be similar in the important ways that affect the experiment. In an experiment designed to ...

. tags=autosave#question4010493_2 # 0 6 Points] DETAILS PREVIOUS ANSWERS MY NOTES PRACTICE ANOTHE An experiment on memory was performed, in which 16 subjects were randomly assigned to one of two gro...

Customer interarrival times at a store are exponentially distributed with rate 8 customers per hour. Customers are served by a single customer service representative (CSR), with an average service tim...

. d-1. Compute all possible forecasts using a trend forecasting model using simple inear regression: (Hound your answers to 2 decimal places.] Preciad Sales Abachurts Enor 1 081 1.129 1344 841 910 0...

A research team is interested in the effectiveness of hypnosis in reducing pain. The responses from 8 randomly selected patients before and after hypnosis are recorded in the table below (higher value...

Suppose a coffee shop order and fulfillment process is configured simply as a single queue with two steps: wait and service. Customers enter, wait their turn, and then are served, by placing and recei...

The H3N2 human influenza virus is type of virus abundant in the seasonal flu. In this study, 16 ferrets were randomly assigned to either receive a vaccine (treatment) or not (control). The weights a...

Carol Dweck (a Psychology professor at Stanford) is well-known for her research on motivation. She developed the idea that one's mindset (or implicit goals) can dramatically influence student learning...

. Question 6 (2 points) Assume that the previous . .signments are discarded and instead, the following probability assignments apply: P(E,) - 0.01. P(E2) = 0.05. P(3) = 0.08, and P(E;) = 0.16. What ...

. Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made by Bank of America. A key measure of customer satisfaction is the response {on a scale from 1 to ...

Explain the "Five - W's " ( Who use it, What is it use for , Where is it used, When is it used, and What is it used for. If possible, list source. Forecasting Methods Markov Pro...

. 13. Let X1, ..., Xn be independent with common cumulative distribution function F(x). Let us define Xmax := max(X1, . .., Xn ) and Xmin : = min(X1, . .., Xn). Express the cu- mulative distribution...

Please analyze the data of 4.25 and 4.38 (ignoring the Greek letters in the 2nd one) using the method of replicated Latin square. a significance level of 0.05 should be used. For some reason cour...

. 1. The Harlem Globetrotters are a famous exhibition basketball team, known for being very showy. On their roster, they have two show-stoppers, eight stars, and eleven opposition members. Each seas...

Can you please help me answer the following questions: Practices with cut scores... 1. We're screening for behavior problems at my school and trying to identify 15% of students who we want to p...

From a sample with n=32, the mean duration of a geyser's eruptions is 3.81 minutes and the standard deviation is 1.21 minutes. Using Chebychev's Theorem, determine at least how many of the er...

Select all that apply: The more books a manufacturer makes, the more books they sell. The more sandwiches someone orders, the more the cost will be. The more hours an hourly employee works, the larger...

. Multicollinearity could O Inflate the std error of the regression coefficients O Make it difficult to detect the true impact of a variable included variable in the model O Force us to exclude vari...

A research group would like to investigate aroma compound in palm sap juice. the first step to study is to extract juice from organic solvent. in this study they plan to use 5 different organic solven...

r & Explanation Related Questions Related Textbooks Related Courses Question Answered step-by-step Asked by GeneralTitaniumOstrich5 Choose all of the true statements below. Select all that apply: ...

Could you please answer this, thank you!. Question 4 Suppose an industry produced a particular type of metal mixture up to 1 ton a day. Due to technical difﬁculties or system breakdowns, the actual ...

Question: Hypothesis testing based on r (correlation) Click the 'scenario' button below to review the topic and then answer the following question: Description : A downloadable spreadsheet name...

. 48 identical looking bags of lettuce were delivered to CircleJ grocers. Unfortunately, 12 of these bags of lettuce are contaminated With listeria. Joe, from Joes Cafe randomly selects 4 bags of th...

. 67% of teenagerS, ages ﬁfteen to seventeen, are Concerned about their Credit scores. Suppose we randomly seiect 29 fifteen, to seventeeneyearrold teenagers and determine if they are concerned ab...

The last two questions I need help figuring out please. . The bank manager wants to show that the new system reduces typical customer waiting times to less than 6 minutes. One way to do this is t...

. The number of text messages a student receives during a MAT 301 ciass has a Poisson distribution With parameter A : 4.2. Suppose that the random variabie X is the number of text messages received ...

. Suppose I 90 an a ﬁshing tl'lp where I VlSlt 4 lakes, lakes L1, L2, L3, and L4. Let C1 be the event that I catch a ﬁsh from lake L1. Let C2 be the event that I catch a ﬁsh from lake L2. Le...

on average Americans have 2 siblings. The standard deviation for this distribution, was reported to be 1. Taylor has three siblings. what is the probability that a respondent has less siblings than Ta...

. 67% of teenagers, ages fifteen to seventeen, are concerned about their credit scores. Suppose we randomly select fifteen- to seventeen-year-old teenagers until we find one who is concerned about h...

. USJudgeRatings is a built-in R data.frame which gives lawyers ratings of state judges in the US Supreme Court. We are interested in some descriptive statistics related to the DECI column of the US...

. Tolls on the Pine Mountain Bridge(PMB) in New York vary by vehicle. Let X be the toll for a randomly selected vehicle crossing the PMB. Suppose X has the following probability distribution, where ...

Data from the National Health and Nutrition Survey reported the average bone mineral density (BMD) for women aged 20-29.The data are in the table below. Assume that BMD scores for each group are norma...

. Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $20,000 and $45,000. Assume that a 95% confidence interval estimate of t...

Please make sure the signs and formulas are clear and readable. 52. Packet transmission times on a certain Internet link are i.i.d. with mean m and variance 0'2. Suppose :1 packets are transmitted. Th...

the probability that tyler will look amazing in a photo was self-reported to be .4. Fardowsa and Samantha reported that the probability that each will look amazing in a picture is .5. what is the prob...

Problem #3 ScatterPlot, Linear Regression Line and Coefficient of Determination (15 points) ?...

5.21 b and c. ﬂ Bottling an energy drink. A bottling company uses a ﬁlling machine to ﬁll cans with an energy drink. The cans are supposed to contain 250 milliliters (ml) each. The machine, howe...

. A jazz concert brought in $129,000 on the sale of 8,200 tickets. If the tickets sold for $10 and $20 each, how many of each type of ticket were sold? III The number of $10 tickets is The number of...

Excel Sheet https://docs.google.com/spreadsheets/d/19nZnEr6TjCgdb6mvwlKOI1njvk4qUE0a/edit?usp=sharing&ouid=109903668686923274818&rtpof=true&sd=true 21. J. Aitchison collected expendi...

Van believes that his score on an upcoming test can be modeled by the equation y=5.9x+61 where x represents the number of hours spent studying, and y represents Van's test score. Assuming thi...

Sex Hair Eye 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Black Brown 0 Bla...

. al Metro by T-Mobile LTE 9:03 PM 1 0 5% Course Practices ( Quiz, Test... Question 1 10 Points Find the mean: Round your answer to the hundredths place. 46, 67, 78, 18, 4, 66, 77, 8, 6, 48. For hel...

From a sample with n=40, the mean duration of a geyser's eruptions is 3.51 minutes and the standard deviation is 0.76 minutes. Using Chebychev's Theorem, determine at least how many of the er...

I need help with this exercise.. Question An economist is studying the link between the total value of a country's exports and that country's gross domestic product, or GDP. The economist recorded the...

1 2 3 4 5 6 7 8 9 . The sample space of a random experiment is {a, b, c, d, e, f}, and each outcome is equally likely. A random variable is defined as follows: X Determine the probability mass funct...

During this assignment, you'll start learning about how to best approach correlational analyses like these and start getting some answers. You'll explore the relationships that may or may not exist in...

Becky's statistics teacher was teaching the class how to perform the z-test for a proportion. Becky was bored because she had already mastered the test, so she decided to see if the coin she had in he...

In the movie Inception, characters are moving among levels of a dream world. Let's number the levels from 0 to 5, where level 0 means you are awake, and level 5 means you are so deep into the dream wo...

. Discuss the validity of the following statement. If the statement is true, explain why. If not, give a counterexample. The range for a set of sample measurements is less than or equal to the range...

Please help. Please complete these in (Rstudio) - Rcode . DETAILS MY NOTES ASK YOUR TEACHER Suppose I go on a fishing trip where I visit 4 lakes, lakes L1, L2, L3, and L4. Let C1 be the event that I...

Please help. Please complete these in (Rstudio) - Rcode . DETAILS MY NOTES ASK YOUR TEACHER 67% of teenagers, ages fifteen to seventeen, are concerned about their credit scores. Suppose we randomly ...

Please help. Please complete these in (Rstudio) - Rcode . DETAILS MY NOTES ASK YOUR TEACHER 48 identical looking bags of lettuce were delivered to Circle] grocers. Unfortunately, 12 of these bags of...

Please help. Please complete these in (Rstudio) - Rcode . DETAILS MY NOTES ASK YOUR TEACHER Tolls on the Pine Mountain Bridge(PMB) in New York vary by vehicle. Let X be the toll for a randomly selec...

Please help. Please complete all in (Rstudio) - Rcode . DETAILS MY NOTES ASK YOUR TEACHER USJudgeRatings is a built-in R data.frame which gives lawyers ratings of state judges in the US Supreme Cour...

A small regional carrier accepted 15 reservations for a particular flight with 14 seats. 11 reservations went to regular customers who will arrive for the flight. Each of the remaining passengers will...

Is it true that men care more about looks than personality? Students in a statistics class were asked, "Would you date someone with a great personality even though you did not find them attractive?" S...

Can you interpret this SPSS output in very simple terms? The only things worth nothing is that 1 indicates male and 2 indicates female. . GO File Edit View Data Transform Insert Format Analyze Gra...

6. 7. 8. 9. 12. . Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviat...

2. 3. 4. 5. . Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. Click to view page 1 of the table. Click to view pa...

Is it fair to say that we should use a parametric test when we can and a non-parametric test when we have to? Why or why not? What is the primary difference between parametric and non-parametric tests...

. From prior experience, a freight company knows that the shipping containers that it receives have an average weight of 26 tons and a standard deviation of 5 tons. Consider a small cargo ship with ...

. The population standard deviation for the heights of dogs. in inches, in a city is 3.7 inches. If we want to be 95% confident that the sample mean is within 2 inches ofthe true population mean, wh...

. SCENARIO The growth rate of a certain population of fish is known to have the following two properties: (1) there is a minimal viable population, M, and if the population is below M, the populatio...

## Establishing a connection We use the packages `DBI` and `RMariaDB` to connect to the *employees* database: ```{r} con <- DBI::dbConnect(RMariaDB::MariaDB(), hos...

Pls help.. . A Question 4 (1 point) Retake question Increasing the sample mean would: 0 make the confidence interval smaller 0 make the confidence interval larger 0 not change the size of the con...

Answer 3.2.12bcef. 3.2:12 Suppose X and Y are independent, with E (X) = 5 and E (Y) = 6. For each of the following variables Z, either compute E (Z) or explain why we cannot determine 148 Section 3.2:...

. 3.3.2 Suppose the joint probability function of X and Y is given by 1/7 x = 5, y = 0 1/7 x = 5, y = 3 1/7 x = 5, y = 4 PX, Y ( x, y) = 3/7 x =8, y = 1/7 x = 8, y = 4 0 otherwise, as in Example 2.7...

. 3.4.8 Suppose P(X = 2) = 1/2, P(X = 5) = 1/3, and P(X = 7) = 1/6. (a) Compute rx (t) for t E Rl. (b) Verify that ry (0) = P(X = 1) and r* (0) = 2P(X = 2). (c) Compute mx (s) for s E Rl. (d) Verify...

Suppose one study showed a 95% confidence interval for the mean number of licks required to get to the center of a Tootsie Roll Tootsie Pop is (380,460). For each of the following, state whether the i...

A lot of bulbs is tested by randomly testing three bulbs drawn from the lot without replacement. If all three bulbs are non-defetctive, the lot is approved. A particular lot contains 14 bulbs, out of ...

The general shape of a distribution shown graphically does not depend on the scale used on the Y-axis (assuming the same scale on the x axes). Select one: a. This is not true b. This is true if the un...

The relationship between confidence intervals and hypothesis testing The statistician selects a random sample of size n₁ = 38 nights that the southside restaurant is open. For each night in the samp...

. Linear regression model with one dependent variable mpg (miles per gallon). This variable describes how many miles a car runs on one gallon of gas. Higher mpg means the car consumes less gas. The in...

suppose a population consists of 63,000 people. Which of the following numbers of members of the population being surveyed could result in a parameter but not a sample statistic 630 63,000 both 630 ...

Debe resolver el ejercicio de contraste de hipótesis: Se cree que el nivel medio de protombina en una población normal es de 20 mg/100 ml de plasma con una desviación típica de 4 miligramos/100 ml...

Sara is a 60-year-old Anglo female in reasonably good health. She wants to take out a $50,000 term (that is, straight death benefit) life insurance policy until she is 65. The policy will expire on he...

What sample size would be required for the auditor to be 90% confident that their estimate of the average savings account balance at this bank is within $150 of the true mean? Assume that their best e...

1.) Suppose that wait times for customers at a grocery store cashier line are uniformly distributed between three minutes and sixteen minutes. (a) What are the mean and variance of the waiting time? (...

5.17 Please. 5.16 Sleep duration of college students. In Example 5.4, the daily sleep duration among college students was approximately Normally distributed with mean ,u : 7.13 hours and standard devi...

The college student senate is sponsoring a spring break Caribbean cruise raffle. The proceeds are to be donated to the Samaritan Center for the Homeless. A local travel agency donated the cruise, valu...

Please answer all the questions, I'm not sure what to put or how do the problems. Please and thank you, also please hurry. . 3) What is the scope of inference for your results? Can you cl...

. The following simple logistic regression was based on over 100,000 records from 2016 regarding attendance at scheduled medical appointments for a district In Brazil. Of interest to the researcher ...

. In (hazard of discontinuation at time t) = In(lambda_o_hat (t)) + -0.62x, where x1=1 for those who self-inject the contraceptive and 0 for those who have a provider inject the contraceptive. The s...

. < -> C A mylab.pearson.com/Student/PlayerHomework.aspx: TI MAT 165: Finite Math & its Applications (4226_9871) Question 4, 4.3.9-Setup & Solve Part 1 of 3 Homework: Modul...

. Supermarket Store A wants to determine whether prices at their competitor are lower than at their store. Researchers randomly selected ten items and compared the prices at each store. Item 2 3 4 5...

. A principal at a large high school is interested in determining how much time her students spend on their phones each day. The table below shows the mean and standard deviation of the amount...

. From 198.?r to 21304, the number B of federally insured banks could be approximated by B[t] = —33l}t + 13735 where t is the year and t=t'} corresponds to 193?. How many federally insured banks w...

. Consider the hypotheses shown below Given that )1 = 109, o = 25, n = 45, a = 0.05, complete parts a and b. Ho: : 117 H1 : p ¢ 117 a. What conclusion should be drawn? b. Determine the p-value for ...

For each of the following questions: a. Calculate the z-scores (show work) b. Draw the theoretical normal curve and locate the raw scores on the curve. C. Shade the area under the curve appropriate ...

A professor plotted her student's quiz grades (on the x axis) against their scores on the final (y-axis). Both were graded out of 100 points possible. There was extra credit on the final. She found th...

. 3. Suppose you knew that exactly 45% of the American population approved of the president's job performance. In probability terms, this means that for a random American, the president's approv...

. Iris Data Set Use R as a calculator to do the "by-hand" calculations (means to show the steps as if you were solving by hand) to test the claim that the population mean sepal length for ...

The average age of cats at the shelter is 3 months old, but the average age of the dogs is 9 months old. The overall average age of animals at the shelter (with only dogs and cats) is 8 months old. Wh...

The probability that an individual is left-handed is 0.15. In a class of 30 students, what is the mean and standard deviation of the number of left-handers in the class? a. mean: 4.5; standard deviati...

. 4. In man}.r problems about modeling count data. it is found that values of zero in the data are far more common than can he explained well using a Poisson model. For example. the distribution of ...

Hello tutor I'm having a hard time understand how to identify statistic. How how do you know if a test statistic is negative or positive ? Could you give me some example? 1. The average number of...

. NAME: UFID# SEAT: Section: CSE E231 - LAB 5: BABY GIRLS GET READY: Login to the computer, open a web browser and go to artofstat.com. QUESTION: Approximately 50% of all babies born are girls. But ...

. d. (1 pt) Go around the table with your group and notice what happens to the Sampling Distribution of p as n goes from 10 to 90. What happens to its: Shape? Mean? Stdev? 3. (0.5 pt) The theory say...

Please include explanation . 17. Provide an appropriate response. The weights (in pounds) of 30 preschool children are listed below. Find the interquartile range of the 30 weights listed below. Wh...

confused on how they are getting the answer please help and show steps thank you. 1. When a red die and a blue die are rolled, the sample space consists of 36 elements. (a) Construct this sample sp...

answer questions 3, 8, 10, and 19 using the steps below if applicable . MR. VERTULLO * 8.4 TESTING PI- P2 / DIFF. OF 2 PROPORT O chumm : p, DP2 2 H . P . D P 2 3 Haip . [ P 2 D in Mos 16 Cases P = x...

1) Which resource would you suggest to your lecturer if they asked you to locate a certain chemical to buy? 2) Provide an example of the knowledge pyramid and describe it as you understand it. 3) What...

For a just completed research project, the null hypothesis of the researchers was that the sample mean was equal to the population mean. Or in equation form: M = µ. At the conclusion of the study, th...

please help with this. E4 " X V fx =FORMULATEXT(D4) B D E F G H K L M N O P Q R S (Expected) Year 0 Year 1 Formulas Investment A 10% $2,000 #N/A Investment B 6% $2,000 #N/A Investment C 12% $2,00...

QUESTION 6·1 POINT A random sample of adults were asked whether they prefer reading an e-book over a printed book. The survey resulted in a sample proportion of p′=0.14, with a sampling sta...

Assume your α is .05. What should be their decision about the null hypothesis and the conclusion for the study from Question 1? Use the z-table for this question. HINT: Does the z go beyond th...

. A hash table is a very important data structure in computer science. It is used for fast information retrieval. It stores data as a < key, value > pair, where the value is indexed by the key...

QUESTION 1·1 POINT The scatter plot below shows data relating total income and the number of children a family has. Which of the following patterns does the scatter plot show? The horizontal...

. In a Binary Symmetric (Communication) Channel (BSC) data is sent data is sent using bits ( and 1. When the source and the destination are far apart, there are repeaters that decode the bit and tra...

A medical experiment on tumor growth gives the following data table. x y 55 23 67 44 78 55 89 66 101 75 The least squares regression line was found. Using technology, it was determined that the tot...

QUESTION 11·1 POINT The answer choices below represent different hypothesis tests. Which of the choices are right-tailed tests? Select all correct answers. Select all that apply: H0:X≥17....

. Chrome File e Edit View History Bookmarks Profiles Tab Window X 0 7 Q 8 . Tue Feb 28 9:12:45 AM . . . (23) He Made $150 in 30 M 41 in National University | Apps D2L 407 Week 1: Homework - MNS X 40...

Please help . South Shore Construction builds permanent docks and seawalls along the southern shore of Long Island, New York. Although the firm has been in business only five years, revenue has incr...

Which hypothesis testing step is omitted when using the p -value approach? a. computing the value of the test statistic b. identifying the value cutting off the rejection region c. identifying the rel...

In the Lady Tasting Tea Experiment, an English lady, Muriel Bristol, claimed that she can tell whether tea or milk was added first to a cup. To test her ability, you gave her six cups of tea, three wh...

. 11. Energy Consumption The data show the percentages of the types of energy consumed in the United States. Draw a pie graph for the data. What percentage of energy used is obtained from fossil fue...

You earn a 75 on your Stats quiz; The average = 79 and s = 4 on stats test How many standard deviations do you lie from the mean? _____________ How well do you do in comparison to the rest ...

A new medication is being developed to treat severe morning sickness in pregnant women. The information below was generated from a small sample size ( n = 6) and shows the number of times a woman with...

USA Today reported that approximately 25% of all state prison inmates released on parole become repeat offenders while on parole. Suppose the parole board is examining five prisoners up for parole. Le...

Which of the following relationships below are examples of Causation? Assume that all of the following have a strong correlation. Select all that apply: The taller a person is, the larger their...

. Consider a Poisson distribution with an average of 3 customers per minute at the local grocery store. a. If X = the number of arrivals per minute: Find the probability of 7 customers or less arriv...

. An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is...

. An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest state. The amount of juice squeezed from each of these apples is approximately normally distribute...

Can someone please help with this? . CHAPTER 5: PROBABILITY CONCEPTS Show Formulas and work on scratch paper, answer in boxes. Count of homes sold per Colorado Springs Zip Code in year 2011 Jan - Ma...

what would you respond to this discussion in regarding study #2 Study #2 The Anaheim Ducks have a home game at the Honda Center, and on this particular night, fans that drive a Honda to the game...

Choose one of the three studies from the document and address the following prompts regarding that study: What are the possible sources of bias or the unethical behavior (if any) in the study, and ...

. "In May 2017, The Economist published an article titled, "The World's Most Valuable Resource Is No Longer Oil, But Data." Whether or not data is, in fact, the world's most valuable ...

For standadrd normal random variable Z, find (i) p(0 < Z < 1.35), (ii) p(-1.04 < Z < 1.45), (iii) p(-1.40 < Z < -0.45), (iv) p(1.17 < Z < 1.45), (v) p( Z < 1.45), (vi) p(1.0...

. Find the variance of the probability distribution for the histogram shown. 1.56 x 0.3 0.2 0.1 .III X 1 2 3 4 5 Need Help? [-I1 Points] DETAILS TANFIN12 8.3.014. MY NOTES | ASK YOUR TEACHI Paul Hun...

POSSIBLE POINTS: 300 people convicted of drunk driving three times in one year are imposed a fine plus a suspended jail sentence plus one of (1) no treatment, (2) attend an alcoholism clinic, or (...

300 people convicted of drunk driving three times in one year are imposed a fine plus a suspended jail sentence plus one of (1) no treatment, (2) attend an alcoholism clinic, or (3) participate i...

Annual high temperatures in a certain location have been tracked for several years. Let � represent the year and � the high temperature. Based on the data shown below, calculate the correlation co...

. 5. (10 points) The figure below includes plots of three time series, each of length 500, along with their sample ACF plots. Which of these three time series behaves like a white noise? Explain. No...

. 4. (15 points) From the FRED website, access the monthly data set containing the housing inventory's median days on market between 07/2016-01/2023. The data are available at https:/ /fred. stlouis...

. 3. (15 points) Consider co2 time series from the datasets package in R. This series Xt has monthly atmospheric CO, concentration, measured in ppm, from 1959 to 1997. a. Apply a Lowess smoother wit...

Use the iris data set that is in "base" R (no special packages are required). Perform KNN classification analysis. The dependent variable is Species. Use all available independent variables and set.se...

. 4. Suppose we have n = 400 observations from an AR(1) process having a mean / (unknown): Xt - u = 0.6(Xt-1 - u) + et, where et ~ iid(0, 1), and it is found that X = 1.03. Use this information to t...

Heart rate of a ward is being measured at the average rate of 60 beats per patient per minute. (a) (3 pts) What would be a reasonable distribution to use for the number of heartbeats in a ward compris...

Suppose that in one year the number of industrial accidents X follows a Poisson distribution with mean 3.0. If each accident leads to an insurance claim of $5,000, how much money would an insurance co...

I have added pages 1-6 which is the lesson plan. Page 8 is the Z table Please see show work on pages the last two pages 1-8 thank you. Chapter 10 Lesson 1 In this lesson we will take a look at line...

Hello, I conducted a G*Power analysis and here are the following output paramaters: any suggestions on how to interpret these results? Noncentrality parameter δ = 3.5276684 Critical t = 2.5705818 ...

the correlation, a measure of the relationship between two quantitative variables. There are three basic types of linear correlation: positive , negative , and no linear correlation. For the p...

Part b) (8 marks) The amount of time the university professors devote to their jobs per week is normally distributed with a mean of 50 hours and a standard deviation of 10 hours. i) What is the prob...

Suppose that you wish to estimate the true mean cycle time for producing an Amazon Echo. A random sample of n = 35 observations has been taken and the sample mean has been found to be 8.43 minutes. ...

I conducted a g power analysis and the following were the output parameters: Can you give me some insight on what this represents? I conducted a The test family are the F tests. The statistical test i...

. When playing roulette at a castno, a gambler lS trying to decide whether to bet SS on the number 20 or to bet $5 that the outcome is any one of the ﬁve possibilities 00, O, 1, 2, or 3. The gambl...

Imagine the following items come from a self-efficacy inventory. Which of the following is an example of a reverse-coded survey item? "Some things are just too difficult for me." "When I a...

. Using simple moving averages and the following time series data, respond to each of the items. Period Demand 5 130 points 122 121 112 141 eBook 105 116 Print 118 142 References 10 127. e. 1What is...

The time required to make a certain specialty coffee at a local coffee shop is uniformly distributed between 40 and 80 seconds. Assuming a customer just ordered one of these specialty coffees, dete...

X x- X (x- X )2 7 7-5=2 4 5 5-5=0 0 6 6-5=1 1 3 3-5=-2 4 3 3-5=-2 ...

im stuck.. please help fast. Imagine there are 3 items that have the descriptive statistics below: Item 1: M = 3.59, SD = 1.13 Item 2: M = 3.54, SD = 1.15 Item 2: M = 2.67, SD = 0.78 Here is a covaria...

Suppose that Y is a discrete random variable that has uniform distribution on the n numbers {a, a + b, . . . , a + (n −1)b}, and that X is another discrete random variable that has uniform distribut...

According to the article "A Critical Appraisal of 98.6 Degrees F, the Upper Limit of the Normal Body Temperature, and Other Legacies of Carl Reinhold August Wunderlich" published in the Journal of the...

If my independent variable is type of sanction (prison or probation) and my dependent variable is recidivism (repeating the offense), prior record of offenders would be a _______ variable? Independent...

1. In the rat in the maze homework problem, the null hypothesis was retained, so there was not enough evidence that the time to run the maze differed from 60 seconds. Which type of statistical error i...

## Problem 1. Hemophilia. Hemophilia is a sex-linked bleeding disorder that slows the blood clotting process. In severe cases of hemophilia, continued bleeding occurs after minor trauma or eve...

Customer Amount of Tip ($) Amount of Bill ($) Diners 1 7 48.89 2 2 3.7 28.31 1 3 1 10.73 4 4 4 19.9 3 5 5 28.7 3 6 4.17 24.91 2 7 0.5 6.32 1 8 6 49.2 4 9 5 43.34 3 10 4.67 31.28 4 11 5.17 32.95 4 1...

. The numbers in this set represent the annual household income (in thousands) for 20 homes in a certain neighborhood. ——_(S)— ———— n——— "——— n——— _——" ——...

If I had a large group of people that I wanted to survey, but, I could not get a list of all of the people in the group, but I still wanted to perform some kind of probability sample by taking samples...

Service Times 7.2 4.3 5.2 4.7 8.4 4.8 5.5 2.5 8.2 4.8 3.8 3.8 4.5 4.6 5.0 3.7 4.7 3.3 5.2 7.5 3.3 3.0 3.4 3.9 4.0 3.3 4.6 3.2 1.4 5.5 4.6 6.7 3.6 6.8 5.0 4.7 4.0 4.5 3.9 5.7 7.0 3.7 9.0...

. (Extra Credit - 5 Points) Consider the box plot of quiz score from the first half of this course in a previous semester. Describe what insights can be drawn from this graph. Be specific. Box Plot ...

what was stated to be a type of detail which, when omitted from a study write-up, may lead to deceiving with statistics: a. data analysis b. context of data collection c. all of the other answer optio...

The body temperatures of adults are normally distributed with a mean of 98.60and a standard deviation of 0.73. What temperature represents the 80th percentile? Show your work. Draw bell curve i...

A researcher is examining whether engaging in mindfulness meditation can help student perform better on the GREs. The researcher takes two groups of students. One group takes a GRE prep course with me...

Consider the attached Box Plot. Based on this diagram what are the approximate values of Quartile 1 - Select One (50, 40, 0, 60, 10, 20, or 30) Median - Select One ( 60, 30, 40, 20, 10, 0, or 50) ...

1. Run a frequency distribution for all variables except Identification Number. Note: This database is a third party database from which the description of three variables has been lost. Therefore I...

. Company dar_year fiscal_year sic_category ticker Church & Dwight Co Inc /DE/ 2021 2021 2840 SOAP, DETERGENTS, CLEANG PREPAR CHD FiscalYearEndDate Revenue Netincome AssetTurn NetProfitMargin Ch...

The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. x 11.9 8.2 6.6 3.4 2.7 2.2 2.2 0.5 y 14.3 11.3 9.5 7.1 6.1 6.1 5.9 4.4 x = t...

A researcher wishes to examine the relationship between years of schooling completed and the number of pregnancies in young women. Her research discovers a linear relationship, and the least squares l...

. 11 0.5 points Use this information to answer the next six questions. A Gallup poll included 1012 representatively selected U.S. adults who were asked whether they agreed with the following stateme...

We know that IQ score has a normal distribution with a mean of 100 and a standard deviation of 15. Find the probability that a randomly selected person has an IQ score of less than 87. Find the p...

. Use this information to answer the next several questions: In a test of the effectiveness of garlic for lowering LDL cholesterol, 51 participants over age 60 were asked to take garlic pills daily ...

How do you find the critical values?. A recent internal report indicated that the mean number of miles between oil changes for franchise customers is at least 3,600. One franchise owner conducted a st...

Please show how to solve these in excel. Please provide an in-depth with FORMULAES on how did each vale is found. The more the detail on where and how each value is arrived the better. also each formu...

A psychologist wants to know if spending a summer at a racially integrated day-camp would affect racial attitudes. She decides to test 23 camp applicants on a scale of prejudice before and after their...

hoose the most appropriate completion of the sentence. In order to indicate a strong negative correlation between variables, the correlation coefficient will be Less than or equal to -0.7 or greate...

Discuss the data on the at-risk factors. Do not simply restate what is in the table. Comment on patterns and trends you see in data. Be sure to analyze similarities and differences between your campus...

. d) smaller. Question 29 (Mandatory) (1 point) A psychologist told Billy's dad that he scored 1.37 standard deviations below the mean on his IQ test. The IQ test has a mean of 100 and standard devi...

Psychomotor retardation scores for a particular group of manic-depressive patients have approximately a normal distribution with a mean of 930 and a standard deviation of 130. A random sample of 2...

The average annual number of jobs available for registered nurses is 103,900. If we assume a normal distribution with a standard deviation of 8040, find the probability that a. More than 100,000 job...

. Check my work 2 A loan officer compares the interest rates for 48-month fixed-rate auto loans and 48-month variable-rate auto loans. Two independent, random samples of auto loan rates are selected...

Say that we find a school that has 1200 students, with exactly 200 students each in grades 7 through 12. The population distribution is, as the following figure shows, definitely not normal. Fill in t...

The odds of winning a particular lottery game are 1/50. Lacy purchases 8 of these lottery tickets. Is this a binomial or normal distribution? [type] What is the probability that she wins? [sheWins...

A survey of 490 citizens found that 314 of them favor a new bill introduced by the city. We want to find a 95% confidence interval for the true proportion of the population who favor the bill. What is...

. Which of the following help to decrease your margin of error? Select all that apply. O increase sample size O increase your confidence O decrease your standard deviation (narrowing your population...

can you explain these? . Q1. (12 pts) (a) Is it possible that an event E is independent of E (itself)? Explain. (b) If E and F are independent, does this mean that EC and F0 must be independent? Expl...

Formulate a research question, where you will need to conduct 1 of the 3 analyses: 1) ANOVA; 2) N-Way ANOVA; and 3) MANOVA. Clearly state your hypothesis and identify which variables you will be testi...

Hello I need help please Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable. (a) The number of customers ...

Hello I need help please According to a report, 55.9% of murders are committed with a firearm. (a) If 300 murders are randomly selected, how many would we expect to be committed with...

I am stuck on this problem: Suppose the amount spent on cell phone service for WTCC students per month is normally distributed and has a mean of $78 and a standard deviation of $9. Most students' b...

The housing market is very hot in Washington State and the entire USA. Please collect data on housing prices using Zillow/realtors or any other real estate site. Perform your 2 sample hypothesis testi...

. The following data report total, monthly U.S. gasoline sales in millions of dollars from January 2017 to December 2018. (To find the data, go to the site https://www.census.gov/retail/index.html#m...