Confidence interval for the population mean

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True/False. Suppose the estimated slope coefficient on a simple linear regression of quiz score (out of 100 points) to hours of sleep the night before is 10. This means that a student who slept 7 hours the night before the quiz must have scored 10 points higher on the quiz than did another student who slept 6 hours the night before.

True/False. True/False. Suppose the estimated intercept coefficient on a simple linear regression of quiz score (out of 100 points) to hours of sleep the night before is 5. This means that a student who pulled an all-nighter (did not sleep at all) the night before the quiz must have scored only 5 points on the quiz

When you draw a larger sample, the stand error of your sample mean estimator for the population mean will ____.

(A) decrease
(B) likely decrease
(C) increase
(D) likely increase
(E) not be affected

Constructed from the same sample data, a 90% confidence interval for the population mean would ____.

(A) be wider than a 95% confidence interval
(B) be narrower than a 95% confidence interval
(C) capture the sample mean value with 90% probability
(D) A and C
(E) B and C

Reference no: EM132864831

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