When testing hypotheses concerning differences in treatment effects from an experiment, the test statistic used for comparing two treatments is the same as the test statistic used for comparing differences between two population means from a sample study.
1.True
2.False
Question 2
A matched pairs t-confidence interval examines the mean difference in maximum bench press before and after a training program. The 95 confidence interval is calculated to be ( 3.25, 12.65 ) pounds. What is the correct interpretation of this interval?
1.The researcher is 95 confident that 95 of the subjects improved their bench press from 3.25 lbs to 12.65 lbs.
2.Since 0 is not included in the interval, the researcher is 95 confident that there has been a statistically significant increase in maximum bench press.
3.The researcher is 95 sure the mean difference from the sample is included in the interval.
4.Since 0 is not included in the interval, the researcher is 95 confident that there is not a statistically significant increase in the maximum bench press.
Culture and sensitivity testing.
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