Use the given information to find the number of degrees of freedom, the critical values x and x, 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 98% confidence; n= 21, s = 0.24 mg. Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.)

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 8E
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Use the given information to find the number of degrees of freedom, the critical values x and x, 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 98% confidence; n= 21, s = 0.24 mg.
Click the icon to view the table of Chi-Square critical values.
df =
(Type a whole number.)
Transcribed Image Text:Use the given information to find the number of degrees of freedom, the critical values x and x, 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 98% confidence; n= 21, s = 0.24 mg. Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.)
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