A Sample of N = 25 Individuals Is Selected from a Population

question 19

Multiple Choice

A sample of n = 25 individuals is selected from a population with µ = 80 and a treatment is administered to the sample.What is expected if the treatment has no effect?​

• A)​The sample mean should be very different from 80 and should lead you to reject the null hypothesis.
• B)​The sample mean should be very different from 80 and should lead you to fail to reject the null hypothesis.
• C)​The sample mean should be close to 80 and should lead you to reject the null hypothesis.
• D)​The sample mean should be close 80 and should lead you to fail to reject the null hypothesis.

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Definitions:

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