Answered step-by-step1 Some variables of interest has a a left skewed distribution with...
1 Some variables of interest has a a left skewed distribution with a mean of 100 and a standard deviation of 10. we take a random sample of size 5.
can we calculate the probability that the sample mean is between 95 and 120? (you do not need to actually calculate the probability for this question.)
a. yes, and the calculated probability would be exact
b. yes, and the calculated probability would be approxiamate
c. no.
2 Some variables of interest has a normal distribution with a mean of 100 and a standard deviation of 10. We take a random sample of size 5.
can we calculate the probability that the sample mean is between 95 and 120? (you do not need to actually calculate the probability for this question.)
a. yes, and the calculated probability would be exact
b. yes, and the calculated probability would be approxiamate
c. no.
3 Some variables of interest has a normal distribution with a mean of 100 and a standard deviation of 10. We take a random sample of size 50.
can we calculate the probability that the sample mean is between 95 and 120? (you do not need to actually calculate the probability for this question.)
a. yes, and the calculated probability would be exact
b. yes, and the calculated probability would be approxiamate
c. no.
4 Some variables of interest has a a left skewed distribution with a mean of 100 and a standard deviation of 10. we take a random sample os size 50.
can we calculate the probability that the sample mean is between 95 and 120? (you do not need to actually calculate the probability for this question.)
a. yes, and the calculated probability would be exact
b. yes, and the calculated probability would be approxiamate
c. no.
Answer & Explanation
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