Question

To construct a confidence interval for each of the following quantities, say whether it would be...

To construct a confidence interval for each of the following quantities, say whether it would be better to use paired samples or independent samples. TRUE or FALSE

It would be better to use independent samples for the mean difference in weight loss between people on two different diets.

It would be better to use independent samples for the mean difference in weight before and after 8 weeks on a certain diet.

It would be better to use paired samples for the mean difference in standardized test scores between the first and second attempt at the test.

It would be better to use independent samples for the mean difference in test scores between students taught by different methods.

Math   Statistics-And-Probability   
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Answer #1

It would be better to use independent samples for the mean difference in weight loss between people on two different diets.
True

It would be better to use independent samples for the mean difference in weight before and after 8 weeks on a certain diet.
False, paired samples


It would be better to use paired samples for the mean difference in standardized test scores between the first and second attempt at the test.
True

It would be better to use independent samples for the mean difference in test scores between students taught by different methods.
True

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