The interval estimate 18.5 $\pm$
2.5 was developed for a population mean when the sample standard deviation s was 7.5.Had s equaled 15,the interval estimate would be 37 $\pm$
5.0.

Question

The interval estimate 18.5 $\pm$ 
2.5 was developed for a population mean when the sample standard deviation s was 7.5.Had s equaled 15,the interval estimate would be 37 $\pm$ 
5.0.

Quizplus · Accepted Answer

The interval estimate is affected by the sample standard deviation, but the change in s from 7.5 to 15 would not result in the interval estimate changing to 37 ± 5.0 without additional information such as sample size or confidence level.

The Interval Estimate 18 ±\pm± 25 Was Developed for a Population Mean When the Sample

The Interval Estimate 18 $\pm$ 25 Was Developed for a Population Mean When the Sample