A sample obtained from a population with σ = 12 has a standard error of 2 points.How many scores are in the sample?
A)n = 36
B)n = 24
C)n = 6
D)n = 3

Question

A sample obtained from a population with σ = 12 has a standard error of 2 points.How many scores are in the sample?​
A)​n = 36
B)​n = 24
C)​n = 6
D)​n = 3

Quizplus · Accepted Answer

The standard error (SE) is calculated using the formula SE = σ / √n, where σ is the population standard deviation and n is the sample size. Given σ = 12 and SE = 2, solving for n gives n = (σ / SE)^2 = (12 / 2)^2 = 36.

A Sample Obtained from a Population with σ = 12