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A television CEO believes viewership of the evening news does not depend on age. She collects...

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Basic Math

  1. A television CEO believes viewership of the evening news doesnot depend on age. She collects a random sample of 2000 televisionviewers across four different age groups and asks whether or notthey watch the evening news. The results are as follows:

Watch             | 18 years old           19 to 35            36 to 54           55 years old

Evening News | orless                      years old           years old            or more

___________________________________________________________

Yes                 |          74                      96                               112 146

No                  |          426                    404                             388                 354

Test to see whether watching the evening news and age groupingare independent at the 0.05 level using the Chi-Square test.Conduct this test by hand and using the Chi-Square table instead ofusing Excel.

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