State your statistical decision. Choose the correct answer below. A. The test rejects the null hypothesis. The data provide sufficient evidence to conclude that the mean differs from =50. B. The test rejects the null hypothesis. The data does not provide sufficient evidence to conclude that the mean differs from =50. C. The test does not reject the null hypothesis. The data provide sufficient evidence to conclude that the mean differs from = 50. D. The test does not reject the null hypothesis. The data does not provide sufficient evidence to conclude that the mean differs from = 50. If, in a sample of n = 25 selected from a normal population, X = 54 and S = 15, what is your statistical decision if the level of significance, a, is 0.01, the null hypothesis, Ho, is =50, and the alternative hypothesis, H, is 50 ? a. The critical value(s) is (are) ... (Round to four decimal places to the right of the decimal point as needed. Use a comma to separate answers as needed.) A. -2.7874, +2.7874, found using T.INV.2T(0.01,25) OB. -2.7969, +2.7969, found using T.INV.2T(0.01,24) C. +2.7969, found using T.INV.2T(0.01,24) D. -3.0905, +3.0905, found using T.INV.2T(0.01/2,24) b. Determine the test statistic, ESTAT (Round to four decimal places to the right of the decimal point as needed.) A. "STAT = (54-50) (15) = +0.2667, found using formula (9.2) B. (15 - 50) "STAT = = -3.2407, found using formula (9.2) 54 25 C. (50-54) tSTAT -1.3333, found using formula (9.2) 15 D. *STAT = 25 (54 - 50) 15 25 = +1.3333, found using formula (9.2)