To test Ho: H = 60 versus H, : J

To test Ho: = 60 versus HI : p < 60, a random sample of size n = 24 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the t-Distribution Area in Right Tail. (a) If x = 56.9 and s = 14.7, compute the test statistic. to = - 1.033 (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the (1 = 0.05 level of significance, determine the critical value(s). Although technology or a t-distribution table can be used to find the critical value, in this problem use the t-distribution table given. Critical Value: (Round to three decimal places. Use a comma to separate answers as needed.)