Question IT 5 pts With a = .05, what is the critical t value for a one-tailed test with n = 14? O t= 2.131 O t= 1.771 O t= 1.761 O t= 2.160 Question 12 5 pts A sample of n = 4 scores has SS = 90. What is the variance for this sample? 20 15 30 60 Question 13 5 pts A sample has a mean of M= 39.5 and a standard deviation of s = 4.3, and produces a t statistic of t = 2.14. For a two-tailed hypothesis test with a = .05, what is the correct statistical decision for this sample? The researcher can reject the null hypothesis with a = .05 but not with a = .01. The researcher can reject the null hypothesis with either a = .05 or a = .01. The researcher must fail to reject the null hypothesis with either a = .05 or a = .01. O It is impossible to make a decision about Ho without more information