Question
A sample of n = 25 individuals is selected from a population with = 80, and a treatment is administered to the sample. Which outcome
A sample of n = 25 individuals is selected from a population with = 80, and a treatment is administered to the sample. Which outcome is expected if the treatment has no effect?
a.
The sample mean after the treatment should be very different from 80, leading a researcher to reject the null hypothesis.
b.
The sample mean after the treatment should be very different from 80, leading a researcher to fail to reject the null hypothesis.
c.
The sample mean after the treatment should be close to 80, leading a researcher to reject the null hypothesis.
d.
The sample mean after the treatment should be close to 80, leading a researcher to fail to reject the null hypothesis.
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Statistics For Business And Economics
Authors: James T. McClave, P. George Benson, Terry T Sincich
12th Edition
032182623X, 978-0134189888, 134189884, 978-0321826237
