a. You want to test whether an association exists between two categorical variables. For example, you want
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a. You want to test whether an association exists between two categorical variables. For example, you want to test whether there is an association between belief in global warming and political party affiliation.
b. You want to test whether the sample mean of a numerical variable is different from known population mean. For example, The New York Times reported that the average Broadway show ticket was $109 in 2017. You take a recent random sample of 30 Broadway show ticket prices and want to determine if the mean price of a Broadway show ticket has changed from 2017.
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a To test whether an association exists between two categorical variables you can use a chisquare te...View the full answer
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Related Book For 
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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