Suppose that you are testing the hypotheses

H0:

p=0.16

vs.

HA:

p0.16.

A sample of size

350

results in a sample proportion of

0.22.

a) Construct a

90%

confidence interval for p.b) Based on the confidence interval, can you reject

H0

at

=0.10?

Explain.c) What is the difference between the standard error and standard deviation of the sample proportion?d) Which is used in computing the confidence interval?

Suppose that you are testing the hypotheses Ho: p =0.16 vs. HA: p #0.16. A sample of size 350 results in a sample proportion of 0.22. a) Construct a 90% confidence interval for p b) Based on the confidence interval, can you reject Ho at