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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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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.)
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