A sample of 100 donors to a charity has a mean donation amount of $55 with a

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A sample of 100 donors to a charity has a mean donation amount of $55 with a sample standard deviation of $25. Test using ???? = 0.05 whether the population mean donation amount exceeds $50.

a. Provide the hypotheses. State the meaning of ????.

b. What is the rejection rule?

c. What is the meaning of the test statistic t data?

d. Is the value of the test statistic t data extreme? How can we tell?

e. What is the meaning of the p-value in this example?

f. What is our conclusion? g. Interpret our conclusion so that a nonspecialist could understand it.

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Data Mining And Predictive Analytics

ISBN: 9781118868676

2nd Edition

Authors: Daniel T Larose, Chantal D Larose

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Question Posted: Jul 24, 2024 03:01 AM

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A sample of 100 donors to a charity has a mean donation amount of $55 with a

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Data Mining And Predictive Analytics

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