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Imagine that you wish to compare a sample mean to a population mean to decide if...

Imagine that you wish to compare a sample mean to a population mean to decide if you can reject the hypothesis that µ1= µ2. Assume that you have the following information: N = 45, M = 10, σ (sigma) = 2, µ = µM= 8. Which of the following types of tests should you use?

Group of answer choices

A) A z test

B) A one-sample t test

C)A paired-samples t test

D) An independent-samples t test

E) None of the tests listed above could be appropriate.

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Answer #1

Here,

Population standard deviation( σ (sigma) ) is given,

Hence, we have to use z-test here.

i.e., Option A. is correct.

Thank you.

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