(1 point) Two independent samples have been selected, 88 observations from population 1 and 55 observations from populat

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1 Point Two Independent Samples Have Been Selected 88 Observations From Population 1 And 55 Observations From Populat 1 (117.42 KiB) Viewed 53 times

(1 point) Two independent samples have been selected, 88 observations from population 1 and 55 observations from population The sample means have been calculated to be 21 10.7 and 22 11.8. From previous experience with these populations, it known that the variances are oz 24 and oz = 22. = = - (a) Find 0 (21–12) 0 answer: .820199 = - 0.03. (b) Determine the rejection region for the test of H. : (41 – M2) = 3.04 and Hq : (M1 – ua) > 3.04 Use a -5.04755 z> (c) Compute the test statistic. z = -1.5851 The final conclustion is - = = A. We can reject the null hypothesis that (M1 – M2) - 3.04 and accept that (M1 – M2) > 3.04. OB. There is not sufficient evidence to reject the null hypothesis that (My – M2) = 3.04. (d) Construct a 97 % confidence interval for (uz – M2). - 2 < (M1 – M2) < 2.4 a