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A research firm claims that the distribution of the days of the week that people are most likely to order food for delivery is different from the distribution shown in the figure. You randomly select 500 people and record which day of the week each is most likely to order food for delivery. The table shows the results. At α = 0.01, test the research firm’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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