C A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some demographic information. The mean yearly income for a sample of 39 subscribers to Plan A is $59,200 with a standard deviation of $9.500 This distribution is positively skewed; the coefficient of skewness is not larger For a sample of 38 subscribers to Plan B, the mean income is $59.500 with a standard deviation of $8,000. At the 0.01 significance level, is it reasonable to conclude the mean income of those selecting Plan B is larger? a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.) Reject Hoifts b. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? (Click to select] v Ho There is (Click to select) ~ evidence to conclude that the mean income of those selecting Plan B is (Click to select) v d. What is the p-value? (Round the final answer to 4 decimal places.) Activate Go to Settin arch M O 9