Question

A 82% confidence interval for a sampling distribution with a mean of 100, a sample standard deviation of 24 and a sample size of 36 will be based on a á= ______ and a corresponding Zá of ____

Answer 1

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.41 between score and mean) for Z score.

82% = mean ± 1.34 SEm

SEm = SD/√n