Suppose that you are testing the hypotheses H0: p=0.24 vs. HA: p0.24. A sample of size 300 results in a sample proportion of 0.31.

a) Construct a 90% confidence interval for p.

b) Based on the confidenceinterval, can you reject H0 at =0.10? Explain.

c) What is the difference between the standard error and standard deviation of the sampleproportion?

d) Which is used in computing the confidenceinterval?