A medical researcher suspects that the variance of the pulse rate of smokers is higher than the

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A medical researcher suspects that the variance of the pulse rate of smokers is higher than the variance of the pulse rate of non-smokers. Use the sample statistics below to test the researcher?s suspicion. Use ? = 0.05.

Smokers Non-smokers n2-121 S2 5.3 n1-61 S17.8

H ₀=

H _A=

a. Degrees of freedom for the numerator _____ degreees of freedom for the denominator_______

b. Critical value F ₀= _________ rejection region __________

c. Test statistic F = __________

d. Reject or fail to reject the null hypothesis _______

Related Book For answer-question

Stats Data and Models

ISBN: 978-0321986498

4th edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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Posted Date: Jun 13, 2019 01:51 AM

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A medical researcher suspects that the variance of the pulse rate of smokers is higher than the

Question:

Smokers n₁=61 $1=7.8 Non-smokers n₂=121 $2=5.3 o 2 1 so 2 2 o 2 1 so 2 2 Smokers n₁=61 $1=7.8 Non-smokers n₂=121 $2=5.3 o 2 1 so 2 2 o 2 1 so 2 2

Expert Answer:

a Degree of freedom of numerator 611 60 degree of f... View the full answer

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