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A sample of 12 adults was chosen to determine how many books adults read each year. The mean number of books read in a year by the sample of adults was 10.5 with a standard deviation of 2.3. a.) How many degrees of freedom will be used for the given sample size? 012 011 06 b.) What is the critical value to/2 that corresponds to a 95% confidence level? 1.78 2.20 2.18 013 1.80 c.) What is the 95% confidence interval estimate of the mean number of books adults read per year? (9.20,11.80) (9.14,11.86) (9.04,11.96) (8.95,12.05)

A sample of 12 adults was chosen to determine how many books adults read each year. The mean number of books read in a year by the sample of adults was 10.5 with a standard deviation of 2.3. a.) How many degrees of freedom will be used for the given sample size? 012 011 06 b.) What is the critical value to/2 that corresponds to a 95% confidence level? 1.78 2.20 2.18 013 1.80 c.) What is the 95% confidence interval estimate of the mean number of books adults read per year? (9.20,11.80) (9.14,11.86) (9.04,11.96) (8.95,12.05)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A sample of 12 adults was chosen to determine how many books adults read each year. The mean number of books read in a year by the sample of adults was 10.5 with a standard deviation of 2.3. a.) How many degrees of freedom will be used for the given sample size? 012 011 06 b.) What is the critical value to/2 that corresponds to a 95% confidence level? 01.78 Ⓒ2.20 2.18 013 1.80 c.) What is the 95% confidence interval estimate of the mean number of books adults read per year? (9.20,11.80) (9.14,11.86) (9.04,11.96) (8.95,12.05)
Transcribed Image Text:A sample of 12 adults was chosen to determine how many books adults read each year. The mean number of books read in a year by the sample of adults was 10.5 with a standard deviation of 2.3. a.) How many degrees of freedom will be used for the given sample size? 012 011 06 b.) What is the critical value to/2 that corresponds to a 95% confidence level? 01.78 Ⓒ2.20 2.18 013 1.80 c.) What is the 95% confidence interval estimate of the mean number of books adults read per year? (9.20,11.80) (9.14,11.86) (9.04,11.96) (8.95,12.05)
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