Mathematics, 06.05.2020 06:03 hannah2757
My favorite pizza restaurant advertises that their average delivery time is 20 minutes. It always feels like it takes forever for my pizza to arrive, so I don't believe this is true. I start recording how long it takes for my pizza order to be delivered and I ask a few of my friends to help out too). Of the 50 pizza deliveries we record, the average delivery time is 20.7 minutes with a standard deviation of 2.1 minutes. Conduct an appropriate hypothesis test at the a = 0.05 level to determine if the advertised delivery time is overly optimistic. Population parameter(s): Sample statistics: Hypotheses: Test Statistic: p-value: Reject H? Conclusion (in context of the problem): In the pizza problem above, you should have found that the difference between the advertised average delivery time and the actual average delivery time was statistically significant. Is this difference practically significant? Explain. Make a 99% confidence interval for the average delivery time. Based on this interval, would we reject the null hypothesis? Does this agree with the hypothesis test you performed above? Why or why not? Explain.
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My favorite pizza restaurant advertises that their average delivery time is 20 minutes. It always fe...
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