You wish to test the claim that the population mean is greater than 66 9 at a significance level of a 0 05 Hou o Ha 066 9 066 9 0 Part 2 of 6 You believe the population is normally distributed but you do not know the standard deviation You obtain a sample of size n 108 with a mean of 74 1 and a standard deviation of s 17 5 What is the critical value for this test Report answer accurate to three decimal places