Question

Two samples, each with n=5 scores, have a pooled variance of 40. What is the estimated standard error for the sample mean difference

Answer 1

Estimated standard error for the sample mean difference= 17.93

Explanation:

Given data,

n=5

variance, σ =40

Standard error = σ / sqrt (n)

= 40/ sqrt (5)

= 40/2.23

=17.93

Estimated standard error for the sample mean difference= 17.93