The formula that we use to test the hypothesis that a simple mean was drawn from a population with µ=100 and ó=9 is _____.
A)z=( -ì)/N
B)z=( - ì)/ ó
C)z=( -ì)/
D)none of these

Question

The formula that we use to test the hypothesis that a simple mean was drawn from a population with µ=100 and ó=9 is _____.
A)z=( -ì)/N 
B)z=( - ì)/ ó 
C)z=( -ì)/ 
D)none of these

Quizplus · Accepted Answer

The formula for testing the hypothesis of a simple mean being drawn from a population with known mean and standard deviation is z=(x̄-μ)/σ. Here, x̄ = the sample mean, μ = the known population mean, and σ = the known population standard deviation. The formula in option B matches this format.

The Formula That We Use to Test the Hypothesis That