Consider the computer output below Two-Sample T-Test and Cl SampleN 1 2 15 20 Mean 54.73 58.64 St...

Consider the computer output below Two-Sample T-Test and Cl SampleN 1 2 15 20 Mean 54.73 58.64 StDev SE Mean 2.13 5.28 0.55 Difference mu (1) - mu (2) Estimate for difference:-3.91 95% upper bound for difference: T-test of difference = 0 (vs <): T-value = -3.00 p-value DF? () Fil in the missing values. Is this a one-sided or a two-sided test? Use lower and upper bounds for the P-value. (b) What are your conclusions if ? = 0.05? What if ? 0.01? c) This test was done assuming that the two population vari- ances were different. Does this seem reasonable? d) Suppose that the hypotheses had been Ho: Hi H2 versus Ho: ?# ?. what would your conclusions be if ? = 0.05?