9.3.4) Consider the following computer output: One Sample T: Test of Ho: u = 12 versus Hi: u # 12 Variable n Sample Sample Std. Std Error To P-value Mean Deviation (SE) of Mean X 15 12.564 0.0936034 ? +9 (a) How many degrees of freedom are there on the t-test statistic? (b) Fill in the missing values. You may calculate the bounds on the P-value. What conclusions would you draw? (c) Is this a one-sided or a two-sided test? (d) Construct a two-sided CI on the mean. (e) If the hypothesis had been Ho: u = 12 versus Hi: u > 12, would your conclusion change? (f) If the hypothesis had been Ho: u = 11 versus Hi: p # 11, would your conclusion change? Answer this question by using the CI computed in part (d)