Answer Happy

A real estate agency says that the mean home sales price in City A is the same as in City B. The mean home sales price for 20 homes in City A is $127,402. Assume the population standard deviation is $25,872. The mean home sales price for 20 homes in City B is $112,293. Assume the population standard deviation is $27,112. At a = 0.01, is there enough evidence to reject the agency's claim? Complete parts (a) through (d) below. (a) Identify the claim and state Ho and Ha: What is the claim? O A. The mean home sales price in City A is not the same as in City B. B. The mean home sales price in City A is the same as in City B. O C. The mean home sales price in City A is greater than as in City B. OD. The mean home sales price in City A is less than in City B. Let City A be sample 1 and let City B be sample 2. Identify Ho and Ha: H2 Ho: M1 Ha: P1 H2 .AL I.AL.A. ------- 7. AL- L---LIL... LIGI AL-

Ha Ho Hi H:1 (b) Find the critical value(s) and identify the rejection region. Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) O A. The critical value is zo O B. The critical values are zo = 1 What is the rejection region? Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) OA Z< OB. z> Oc. z< or z>

What is the rejection region? Select the correct choice below and fill in the answer box(es) within your choice. (Round to two decimal places as needed.) OA. Z< OB. z> Oc. za or z> (c) Find the standardized test statistic z. Z= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim. Ho. There enough evidence at the 1% level of significance to the agency's claim that the mean home sales price in City A is in City B.