Question 43 of 50 This test: 55 point(s) possible This question: 1 point(s) possible A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, u, of the population from which the sample was drawn. Use the critical-value approach. x = 3.21 , s= 0.56, n =9, Ho: H= 2.85, Ha: H > 2.85, a=0.01 O A. Test statistic: t= 1.93. Critical value: t= 2.821. Do not reject Ho. There is not sufficient evidence to support the claim that the mean is greater than 2.85. O B. Test statistic: t= 1.93. Critical value: t= 2.896. Reject Ho. There is sufficient evidence to support the claim that the mean is greater than 2.85. O C. Test statistic: t= 1.93. Critical value: t= 2.33. Do not reject Ho. There is not sufficient evidence to support the claim that the mean is greater than 2.85. O D. Test statistic: t= 1.93. Critical value: t= 2.896. Do not reject Ho. There is not sufficient evidence to support the claim that the mean is greater than 2.85