Question: The marketing department wants to analyze the group that preferred the 1:1 - 1.3 :1 screen ratios. The following data show the actual screen ratio preferences by age groups. The critical value for this test was calculated and is given as 6.15.

With an \(\alpha=0.01\) is there a difference between any of the mean screen ratios within these groups?

1. State the Null and Alternative Hypotheses.
2. Determine the critical value.
3. Which test statistic should be used for this test?
4. Interpret the results (decision and summary).

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document