A power calculation has shown that if ? = 8, the power of

Chapter 6, Problem 7E

(choose chapter or problem)

A power calculation has shown that if \(\mu=8\), the power of a test of \(H_0:\mu \geq 10\) versus \(H_1:\mu<10\) is 0.90. If instead \(\mu=7\), which one of the following statements is true?

i. The power of the test will be less than 0.90.

ii. The power of the test will be greater than 0.90.

iii. We cannot determine the power of the test without knowing the population standard deviation \(\sigma\).

Equation Transcription:

Text Transcription:

mu=8

H_0:mu{>/=}10

H_1:mu<10

mu=7

sigma

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