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# A researcher administers a treatment to a sample of participants selected from a population with µ...

A researcher administers a treatment to a sample of participants selected from a population with µ = 62. If the sample mean after the treatment is M = 70, which value of standard error,σM will result in the rejection of null hypothesis (assume p < 0.05, 2-tails test)?

• A. σM = 4

• B. σM = 8

• C. σM = 10

• D. σM = 6

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