StudySmarter AI is coming soon!

- :00Days
- :00Hours
- :00Mins
- 00Seconds

A new era for learning is coming soonSign up for free

Suggested languages for you:

Americas

Europe

Q.100

Expert-verifiedFound in: Page 485

Book edition
OER 2018

Author(s)
Barbara Illowsky, Susan Dean

Pages
902 pages

ISBN
9781938168208

What is meant by the term $\u201c90\%$ confident” when constructing a confidence interval for a mean?

a. If we took repeated samples, approximately $90\%$ of the samples would produce the same confidence interval.

b. If we took repeated samples, approximately $90\%$ of the confidence intervals calculated from those samples would

contain the sample mean.

c. If we took repeated samples, approximately $90\%$ of the confidence intervals calculated from those samples would

contain the true value of the population mean.

d. If we took repeated samples, the sample mean would equal the population mean in approximately $90\%$ of the samples.

From all we get the answer is (C) which in $90\%$ confident .

The term $90\%$ confident ?

When creating a confidence interval for a mean, the term "$90\%$confident" refers to the supposedly oberserved confidence intervals that hold the true value.

Part c is the answer: if we took repeated samples, nearly $90\%$ of the confidence intervals computed from those samples would contain the population mean's true value.

Part c is the correct .

94% of StudySmarter users get better grades.

Sign up for free