a. Using the test statistic approach, what conclusion should be reached about the null hypothesis? Determine the critical value(s) for a = 0.01. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. -Za = OB. Za = O C. ±Za/2 = = State the conclusion. Choose the correct answer below. O A. Do not reject the null hypothesis. There is not sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. O B. Reject the null hypothesis. There is sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. OC. Do not reject the null hypothesis. There is sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. O D. Reject the null hypothesis. There is not sufficient evidence at a=0.01 to suggest that the difference of the population means is different from 0. b. Using the p-value approach, what decision should be reached about the null hypothesis? Determine the p-value. p-value = (Round to four decimal places as needed.) State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is not sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. O B. Do not reject the null hypothesis. There is sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. OC. Reject the null hypothesis. There is sufficient evidence at = 0.01 to suggest that the difference of the population means is different from 0. O D. Do not reject the null hypothesis. There is not sufficient evidence at a = 0.01 to suggest that the difference of the population means is different from 0. c. Will the two approaches (test statistic and p-value) ever provide different conclusions based on the same sample data? Explain. O A. Yes, because it is possible for a test statistic not in the rejection region determined by the critical value(s) to have a p-value less than a. O B. No, because a test statistic in the rejection region determined by the critical value(s) will always have a p-value greater than or equal to a. O C. No, because a test statistic in the rejection region determined by the critical value(s) will always have a p-value less than a. O D. Yes, because it is possible for a test statistic in the rejection region determined by the critical value(s) to have a p-value greater than or equal to a.