Question

**Question 11 **

A researcher wants to construct a 99% confidence interval for the proportion

of people who changed jobs in the past year. What sample size is needed so that the confidence interval will have a margin of error of 0.042 ?

Write only an integer as your answer.

**Question 13 **

Consider the following hypotheses:

H0: mean = 7

H1: mean 7

A test is performed with a sample of size 36. The sample mean was 2.50 and the population standard deviation is 18. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value.

Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer.

Statistics and Probability