If the population variance of the raw scores equals 169 and the sample size is 121,what is the standard error of the mean?
A)0.11
B)1.18
C)1.40
D)15.36

Question

Quizplus · Accepted Answer

The standard error of the mean (SEM) is calculated by taking the square root of the variance (σ^2) divided by the sample size (n). Given the population variance (σ^2) is 169 and the sample size (n) is 121, SEM = sqrt(169/121) = sqrt(1.396694) ≈ 1.18.

If the Population Variance of the Raw Scores Equals 169