Chapter 8.3, Problem 11BSC

Testing Claims About Proportions. In Exercises 9-32, test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method unless your instructor specifies otherwise. Use the normal distribution as an approximation to the binomial distribution (as described in Part I of this section).

11. Identify Theft In a KRC Research poll, 1002 adults were asked if they felt vulnerable to identify theft, and 531 of them said “yes.” Use a 0.05 significance level to test the claim that the majority of adults feel vulnerable to identity theft.