A researcher claims that more than 38% of U.S. adults have been a victim of identity theft. In a random sample of 350 U.S. adults, 140 of them have been a victim of identity theft. Use a 5% significance level to determine if there is enough evidence to support the researcher's claim.

a. What are the null and alternative hypotheses?

b. Check the assumptions and conditions.

c. What are the test statistics (z-stat) and p-value? Z- stat = P-value =

d. What is your decision?

e. summarizes your decision