a. We are testing H0: μ1 - μ2 =0. Our 95% confidence interval is (-27.01,-7.5).
We should expect the t-statistic to be  ---Select---greater than 2 between 0 and 2 between 0 and -2 less than -2.
We should expect the p-value to be  ---Select--- lessthan .05 greater than .05 equal to .05 .
We should  ---Select--- reject fail to rejectH0 and conclude that the group 1 population averageis  ---Select--- smaller larger than the group 2population average.
It is possible that we could be making a  ---Select---Type I Type II error.
b. We are testing H0: μ = 15. Our t statistic is1.25.
We can tell that in our sample, the sample averagewas  ---Select--- greater less than 15.
We should expect the 95% confidence intervalto  ---Select--- include exclude 15.
We should expect the p-value to be  ---Select--- lessthan .05 greater than .05 equal to .05 .
We should  ---Select--- reject fail to rejectH0.
It is possible that we could be making a  ---Select---Type I Type II error.
