Author Question: In a lower one-tail hypothesis test situation, the p-value is determined to be 0.2 . If the sample ... (Read 71 times)

Pineapplelove6 · **on:** Jun 24, 2018

In a lower one-tail hypothesis test situation, the p-value is determined to be 0.2 . If the sample size for this test is 51, the t statistic has a value of
a. 0.849
b. -0.849
c. 1.299
d. -1.299

Question 2

A simple random sample of 144 items resulted in a sample mean of 1257.85 and a standard deviation of 480 . Develop a 95 confidence interval for the population mean.