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Statistics and Probability
March 2021
Statistics and Probability questions and answers in March 2021
Twelve different video games showing alcohol use were observed. The duration times of alcohol use were recorded, with the times (seconds) listed below. Assume that these sample data are used wit...
Josiah participates in a bowling league each summer and again each autumn. In Summer 2019, his mean score for the year was 145. For the whole league, the mean score was 152 with a standard deviation o...
Please put the answer next to the question number. 11. The reason for a ANOVA instead of lots of T tests a.is to avoid inflating type two error b.because it's more complicated and annoying than T test...
Please put the answer next to the question number. 6. Other terms for an Independent Variable include a.factor b.criterion c.level d.output 7. My IV is type of treatment, and I have three types of tr...
Please put the answer next to the question number. 1. Analysis of variance a.uses population data b.uses the T distribution c.compares means specifically d.allows us to see the sources of variation in...
1. What is the symbolic null hypothesis for a oneway ANOVA with five groups? a) H 0 : b) Briefly explain why it may be misleadi...
A botanist is studying a newly identified soybean disease. The botanist collected soil samples from all of the soybean fields in randomly selected states to see if there were significant differences t...
For the below questions, refer to the following study and the SAS output below: A study was conducted on 60 patients to examine the analgesic effects of treatments on elderly patients with neuralgia...
What is the estimated odds ratio for reporting pain for a 65-year-old compared to a 60-year-old, controlling for all other variables in the model? Select one: a. 0.26 b. 1.30 c. 1.69 d. 3.71 e. 7.30 Q...
For questions 54-60, refer to the following study and the accompanying SAS output: A study was conducted on 60 patients to examine the analgesic effects of treatments on elderly patients with neural...
For questions 43-46, refer to the following study and the SAS output below: Breakfast is one of the most important meals of the day. Skipping breakfast has been reported to be associated with increa...
Dexterity, as a measure of hand function, is an important component of a thorough hand evaluation. This is especially true in children, for whom the relationship between the commonly measured paramete...
Lower class Mean Standard Deviation N 12.11 2.83 122 Working class 13.01 2.91 541 Middle class 14.99 2.93 475 Upper class 15.44 2.83 34 As our confidence in the result increases, how does the size of ...
In 2014, there were 500 students enrolled in a college course. In 2015, there were 450 students enrolled in this particular course. Select the true statement about students enrolled in this course fro...
A survey of a sample of business students resulted in the following information regarding the genders of the individuals and their selected major. Selected Major Gender Management Marketing Others To...
Question Points Of the 566 female respondents who answered the question, 40% strongly agreed that a working mother does not hurt children. What is the 90% confidence interval for this statistic? 0.7...
Lets say you have a craving for Mrs. Fields gourmet cookies. You have a choice of oatmeal raisin, macadamia nut, triple chocolate, cinnamon sugar, chocolate chip, and peanut butter. If you must choose...
Lets say 9 teachers in the Math Department are required to pick a random team out of 30 major league teams to cheer for in the next baseball season. What is the probability that at least two of the ...
We are going to calculate the mean, median, and mode for two sets of data. Please show your answer to one decimal place if necessary. Here is the first data set. 51 59 66 31 30 88 54 30 27 99 89 wha...
3- identify the sampling technique D Question 3 2 pts Identify the sampling technique used in the following information. An important part of employee compensation is a benefits package that might inc...
Which of the following pairs of variables is likely to have a positive correlation? A person's height and their favorite color The number of alcohol you drink and your driving ability Your height and ...
What type of analysis is this? a. Two-sample t-test b. Paired t-test c. Simple linear regression d. Multiple linear regression e. Contingency table analysis AutoSave . OFF HELP - Saved to my Mac Hom...
What is the value of the test statistic and the p -value that can be used to test the null hypothesis? a. t = 1.93, p = 0.059 b. t = 0.0085, p = 0.65 c. t = 0.46, p = 0.65 d. F ...
What type of analysis is this? AutoSave . OFF HELP - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View ? Tell me Share Comments Times New... ~ 12 " A A Aav Po AaBbCcD...
What is the value of the test statistic and the p -value that can be used to test the null hypothesis? LOOK AT ANALYSIS VARIENCE TABLE a. t = 1.93, p = 0.059 b. t = 0.0085, p = 0.65 c. ...
Assume the weight distribution has a normal distribution with an average of 160 lbs and a SD of 20 lbs. What portion of the weights are above 145 lbs? Group of answer choices Less than 0.2420 0.2420 0...
Given: P(A) =0.70, P(B)=0.60, P(A or B) =0.88. Determine P(A and B). select one: 0.10 0.18 0.28 0.42 0.60 Given: P(A) =0.70, P(B)=0.60, P(A or B) =0.88. Are A and B independent? (Use your answer from ...
Using a 0.05 significance level, what decision and conclusion should you make regarding the null hypothesis? (1 point) LOOK AT ANALYSIS OF VARIENCE TABLE a.Because p -value > 0.05, we fail to r...
What is the size of our sample used in the model? (1 point) LOOK AT ANALYSIS OF VARIENCE a. 65 b. 64 c. 63 d. 1 e. Cannot be determined from the given information AutoSave . OFF 3 Quiz 4_Chi_Square_...
What are the most appropriate null and alternative hypotheses for this analysis? (1 point) LOOK AT ANAYLISIS OF VARIENCE a.H0: ρ = 0, H1: ρ ≠ 0 b. H0: β 0 = 0, H1: β 0 ≠ 0 c. H...
What are the most appropriate null and alternative hypotheses? a. H0: Age and treatment follow a uniform distribution H1: Age and treatment do not follow a uniform distribution b. H0: 25% of elderly...
How many degrees of freedom does this test statistic have? a. 1 b. 4 c.9 d. 528 e. This test statistic does not use degrees of freedom AutoSave . OFF 3 Quiz 4_Chi_Square_Table_Spring_|_2021- Saved t...
What is the contribution to the overall test statistic of the cell corresponding to elderly patients who were not administered any treatments (labeled B in the output table)? a. 0.32 b. 0.89 c. ...
Question 1 An electronic sensor manufacturer has the following past data regarding the number of sensors that were malfunctioning in different batches produced independently along time. batch index si...
(a) What is the probability that the respondent is from Quebec City ? (b) What is the probability that the respondent is from the Goods Manufacturing industry or from Vancouver ? (c) W...
Using a two month moving average , what is the forecast for June? A. 47.0 B. 30.5 C. 49.5 D. 48.0 Using a three month weighted moving average , compute a forecast for June with ...
An assembly line pouring cereal into boxes pulls samples once an hour. In the chart below is the summary of ten boxes that are sampled each hour, including the mean weight of each sample and the rang...
Please help. Stuck on 32 and 33 Use the following data for problems 32 and 33 The table below shows sales (in thousands) for each quarter of the last three years QTR1 QTR2 QTR3 QTR4 Year 1 11.5 7.2 5....
Questions 32 & 33: Please help Use the following data for problems 32 and 33 The table below shows sales (in thousands) for each quarter of the last three years QTR1 QTR2 QTR3 QTR4 Year 1 11.5 7.2...
According to the NPD Group, 60% of the basketball shoes purchased in 2018 by Canadian men are never worn on a basketball court. A random sample of 15 men who purchased basketball shoes in 2018 was sel...
Statistics & Probability: Use the two POM crashing windows which appear on the next page to answer Question 40' Times are in days. 40) You are given a bonus of $1,750lday the project is complete e...
Thanks for the help Use the following data to construct a c—chart to answer questions 15 and Id. The data below represents the number of complaints recorded the customer sen-ice desk at a local call...
Thanks for the help Use the data below to develop a p—chart to answer questions 13 and 14 The data is from a local pizza parlor. Each dag,r the management sampled 25 pizzas to see if the].r met the ...
please help. Requesting help with 13 and 14 from the info provided. Use the data below to develop a p-chart to answer questions 13 and 14 The data is from a local pizza parlor. Each day the management...
please help 5) A data set of unknown distribution has a mean of 60 and a standard deviation of 7. At least how much of the data lies between 46 and 74? Hint: (Chebyshev) A. 95% B. 99.7% C. 68% D. 75% ...
Suppose we are interested in calculating a 90% confidence interval for the mean of a normally distributed population. We've drawn a sample of 10 observations from this population, and found a sample ...
I want to compare the happiness of psychology statistics students at UT Dallas to ALL college students. I have the mean and SD happiness of my sample, and the mean and SD for all college s...
Which significance test should be used to see if my treatment group did better on the exam than my control group? Group of answer choices A) Paired Samples t-test B) Independent Samples t-test C) Z-te...
21) We are testing a new treatment for depression. One group gets the treatment and the other group gets no treatment (Control group). Which significance test should we use? Group of answer choices A)...
will rate helpful right away! A sample of products is obtained by selecting every 100th item on the assembly line. This type of sampling is called 0 cluster sampling 0 stratified sampling 0 random sam...
will rate helpful right away A variable which represents the amount of income tax the company in Brampton pays is a 0 continuous quantitative variable. O qualitative variable. 0 discrete quantitative ...
Cholesterol is a type of fat found in the blood. It is measured as a concentration: the number of milligrams of cholesterol found per deciliter of blood (mg/dL). A high level of total cholesterol in t...
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