Suppose a sample of adults revealed data regarding whether or not a person who smokes also has a tatto0. Given the observed data below, test the claim with a significance level of 0.05, that having a tattoo is independent of whether or not the person is a smoker. Smoker Non-Smoker Totals Has a Tattoo 35 70 Doesn't have a Tattoo 20 85 Totals

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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b) State the Null Hypothesis: H, [ Select]
[ Select ]
Having a tattoo is indepenent of whether or not the person is a smoker
Having a tattoo is not independent of whether or not the person is a smoker
Transcribed Image Text:b) State the Null Hypothesis: H, [ Select] [ Select ] Having a tattoo is indepenent of whether or not the person is a smoker Having a tattoo is not independent of whether or not the person is a smoker
Suppose a sample of adults revealed data regarding whether or not a
person who smokes also has a tattoo. Given the observed data below,
test the claim with a significance level of 0.05, that having a tattoo is
independent of whether or not the person is a smoker.
Smoker Non-Smoker Totals
Has a Tattoo
35
70
Doesn't have a Tattoo 20
85
Totals
Transcribed Image Text:Suppose a sample of adults revealed data regarding whether or not a person who smokes also has a tattoo. Given the observed data below, test the claim with a significance level of 0.05, that having a tattoo is independent of whether or not the person is a smoker. Smoker Non-Smoker Totals Has a Tattoo 35 70 Doesn't have a Tattoo 20 85 Totals
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