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

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A television CEObelieves viewership of the evening news does not depend on age. Shecollects a random sample of 2000 television viewers across fourdifferent age groups and asks whether or not they watch the eveningnews. The results are as follows:
WatchÂ Â Â Â Â Â Â Â Â Â Â Â Â | 18 years oldÂ Â Â Â Â Â Â Â Â Â Â 19 to35Â Â Â Â Â Â Â Â Â Â Â Â Â Â 36 to 54Â Â Â Â Â Â Â Â Â Â 55 years old
Evening News | orlessÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â years oldÂ Â Â Â Â Â Â Â Â Â Â Â years oldÂ Â Â Â Â Â Â Â Â Â Â or more
_
YesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â |Â Â Â Â Â Â Â Â Â Â 70Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 96Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 112Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 146
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â |
NoÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â |Â Â Â Â Â Â Â Â Â Â 430Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 404Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 388Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 354
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â |
_
Test to see whetherwatching the evening news and age grouping are independent at the0.05 level using the Chi-Square test. Conduct this test by hand andusing the Chi-Square table.

Answer & Explanation Solved by verified expert

4.2 Ratings (797 Votes)

Step1Null Hypothesis Ho Watching the evening news and age groupingare INDEPENDENTAlternative Hypothesis Ha Watching the evening news and agegrouping are DEPENDENTStep2 Given data is Observed frequency data OFor given contigency table we calculate Row and ColumnTotals as below18 years old or less19 to 35 years old36 to 54 years old55 See Answer

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