Question no 1

Given the null and alternative hypotheses, sample HO H1 - H2 20 X, = 140 X2 = 133 means, sample sizes, and population standard deviations shown to the right, conduct a hypothesis HA: H, - H2 O C. 2> Calculate the value of the test statistic. z= (Round to two decimal places as needed.) Since the test statistic in the rejection region, the null hypothesis. There is evidence to conclude that the mean of population 1 is less than the mean of population 2.OA. Z OC. Z> Calculate the value of the test statistic. z= (Round to two decimal places as needed.) Since the test statistic in the rejection region, Wwthe null hypothesis. There is evidence to conclude that the mean is not Type here to search O DELLlate the value of the test statistic. (Round to two decimal places as needed.) the test statistic in the rejection region, the null hypothesis. There is evidence to conclude that the mean reject do not reject Type here to search O O DELLU as needed.) rejection region, the null hypothesis. There is evidence to conclude that the mean of population 1 is less than the me sufficient insufficient 99 F A O O DELL