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  3. a. we are testing h0: μ1 - μ2 = 0. our 95% c

a. We are testing H0: μ1 - μ2 = 0. Our 95% confidence interval is (-27.01,-7.5). We...

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Statistics

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.

Answer & Explanation Solved by verified expert
3.8 Ratings (508 Votes)
Solution a We are testing H0 1 2 0 Our 95 confidence interval is 270175 We should expect the tstatistic to be less than 2 Because the confidence interval contains all the negative values We should expect the pvalue to be less than 05 Since the confidence interval is significant at 005 significance level    See Answer
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