When the p-value is greater than the significance level, we: O fail to reject null O fail to reject h1 O reject null have no conclusion QUESTION 3 Suppose you wish to test Ho: u S 0 versus H, : u > 0 at the 0.05 significance level. Furthermore, suppose that you observe values of the sample mean and sample standard deviation when n=25 are 0.5, and 2, respectively. Applying an appropriate test, you: O have no conclusion O reject null O fail to reject null O reject or fail to reject null QUESTION 4 P(It|>3.365) with df=5 is: O 0.05 O 0.01 O 0.04 O 0.02 QUESTION 5 Consider a population 1, 4, 3, 8. Fix the sample size as 3, we can list all possible samples and calculate all sample means correspondingly. The mean of sample means is: 0 7 0 4 O 2 0 3