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has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 20, s = 0.23 mg. Click the icon to view the table of Chi-Square critical values. df = 19 (Type a whole number.) x² = 11.651 (Round to three decimal places as needed.) x² = = 27.204 (Round to three decimal places as needed.) o The confidence interval estimate of σ is 0.04 mg

has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 20, s = 0.23 mg. Click the icon to view the table of Chi-Square critical values. df = 19 (Type a whole number.) x² = 11.651 (Round to three decimal places as needed.) x² = = 27.204 (Round to three decimal places as needed.) o The confidence interval estimate of σ is 0.04 mg

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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7.20

R' Use the given information to find the number of degrees of freedom, the critical values x2 and x², and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 20, s = 0.23 mg. Click the icon to view the table of Chi-Square critical values. df = 19 (Type a whole number.) x² = 11.651 (Round to three decimal places as needed.) XR = = 27.204 (Round to three decimal places as needed.) The confidence interval estimate of o is 0.04 mg<o< 0.09 mg. (Round to two decimal places as needed.)
Transcribed Image Text:R' Use the given information to find the number of degrees of freedom, the critical values x2 and x², and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 20, s = 0.23 mg. Click the icon to view the table of Chi-Square critical values. df = 19 (Type a whole number.) x² = 11.651 (Round to three decimal places as needed.) XR = = 27.204 (Round to three decimal places as needed.) The confidence interval estimate of o is 0.04 mg<o< 0.09 mg. (Round to two decimal places as needed.)
Expert Solution
Step 1: Given Information:

It is given that 

Sample std. deviation, s = 0.23

Sample size, n = 20

Confidence level = 80%

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