3 Exercise 10-15 Algo 55 A phone manufacturer wants to compete in the touch screen phone market. Management understands that the leading product has a ints less than desirable battery life. They alm to compete with a new touch screen phone that is guaranteed to have a battery life more than two hours longer than the leading product. A recent sample of 65 units of the leading product provides a mean battery life of 5 hours and 28 minutes with a standard deviation of 81 minutes. A similar analysis of 80 units of the new product results in a mean eBook battery life of 7 hours and 40 minutes and a standard deviation of 81 minutes. It is not reasonable to assume that the population Hint variances of the two products are equal. Print All times are converted into minutes. Let new products and leading products represent population 1 and population 2, respectively. (You may find It useful to reference the appropriate table: z table or [ table) References a. Set up the hypotheses to test if the new product has a battery life more than two hours longer than the leading product. O HO: H1- H2= 120; HA H1 - H2 # 120 O HO: H1 - H2 2 120: HA: M1 - H2 120 b-1. Calculate the value of the test statistic. (Round all Intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic