tis You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: ≤ 50 H>50 A sample of 60 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use a = 0.05. (Round your answers to two decimal places.) (a) x = 52.1 Find the value of the test statistic. State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.) test statistics test statistic 2 State your conclusion. Do not reject Ho. There is sufficient evidence to conclude that > 50, Do not reject Ho. There is insufficient evidence to conclude that > 50. O Reject Ho. There is insufficient evidence to conclude that > 50. O Reject Ho. There is sufficient evidence to conclude that > 50. (b) x 51 Find the value of the test statistic. State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail.)