Consider the computer output below. One-Sample T: Test of mu 12 vs not 12 Variable N
Chapter 9, Problem 9-55(choose chapter or problem)
Consider the computer output below. One-Sample T: Test of mu 12 vs not 12 Variable N Mean StDev SE Mean T P x 10 12.564 ? 0.296 ? ? (a) How many degrees of freedom are there on the t-test statistic? (b) Fill in the missing values. You may calculate bounds on the P-value. What conclusions would you draw? (c) Is this a one-sided or a two-sided test? (d) Construct a 95% two-sided CI on the mean. (e) If the hypothesis had been H0: 12 versus H1: 12, would your conclusions change? (f) If the hypothesis had been H0: 11.5, versus , would your conclusions change? Answer this question by using the CI computed in part (d). H1
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