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

Question:

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

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

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

e. What is our conclusion?

f. Interpret our conclusion so that a nonspecialist could understand it.

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Discovering Knowledge In Data An Introduction To Data Mining

ISBN: 9780470908747

2nd Edition

Authors: Daniel T. Larose, Chantal D. Larose

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Question Posted: Nov 30, 2023 03:15 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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a The hypotheses are Null hypothesis H0 The population mean donation amount is not greater than 50 Alternative hypothesis H1 The population mean donat...View the full answer

Discovering Knowledge In Data An Introduction To Data Mining

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