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A researcher claims that the ages of people who go to movies at least once a month are distributed as shown in the figure. You randomly select 1000 people who go to movies at least once a month and record the age of each. The table shows the results. At α = 0.10, test the researcher’s claim.
(a) Identify the expected distribution and state H0 and Ha,
(b) Find the critical value and identify the rejection region,
(c) Find the chi-square test statistic,
(d) Decide whether to reject or fail to reject the null hypothesis,
(e) Interpret the decision in the context of the original claim. |
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