Question

Data on salaries in the public school system are published annually by a teachers' association. The mean annual salary of (public) classroom teachers is $59.7 thousand. Assume a standard deviation of $9.6 thousand. Complete parts (a) through (e) below. a. Determine the sampling distribution of the sample mean for samples of size 64. The mean of the sample mean is Hi = $ (Type an integer or a decimal. Do not round.)

Answer 1

Solution :

Given that,

The sampling distribution of mean is ,

$\mu$
_T
= $ 59.7

The sampling distribution of standard deviation is ,  

$\sigma$
_T
= $\sigma$ / $\sqrt$ n = 9.6 / $\sqrt$ 64 = 1.2