Unformatted text preview: y increases as annual income x increases. b) We would like to conclude that the mean yearly food cost increases as annual income increase. What would be the smallest value of significance level α that needs to be used in this case? c) Comment on the value of α in part (b). Solution : The consumer investigator wants to test: b) What is the smallest α level that would reject the null hypothesis and make the regression model adequate....
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- Fall '10
- Statistics, Statistical hypothesis testing, investigator, yearly food cost