QUESTION 8 Provide an appropriate response. Find the standardized test statistic t for a sample with n = 10, x = 10.9, s = 1.3, and u- 0.05 if Ho:His 11.8. Round your answer to three decimal places, -2.189 -3.010 -3.186 -2.617 QUESTION 9 Find the critical value. Determine the critical values for a two-tailed test of a population mean at the a = 0.05 level of significance based on a sample size of n = 12. 12.201 12.179 +1.782 +1.796Provide an appropriate response. Suppose you want to test the claim that u 25.6. Given a sample size of n = 47 and a level of significance of a = 0.01, when should you reject Ho? Reject Ho if the standardized test statistic is greater thanks 575. O Reject Ho if the standardized test statistic is greater than 1.96. O Reject Ho if the standardized test statistic is greater than 2.33. O Reject Ho if the standardized test statistic is greater than 1.28.QUESTION 12 Find the critical value(s). Determine the critical value for a left-tailed test of a population standard deviation for a sample of size n 27 at the a =0.01 level of significance. 12,879 45.642 12.198 46.963QUESTION 14 Find the t-value. Find the t-value such that the area left of the t-value is 0.001 with 15 degrees of freedom. O -3.733 O -2.602 O 3.733 3.787