The Mean, Standard Deviation, and Sampling Distribution of the Sample Mean

The Mean and Standard Deviation of the Sample Mean

Answers

1. $\mu_{\bar{X}}=100, \sigma_{\bar{X}}=1.33$

3. a.

$\mu_{\bar{X}}=75, \sigma_{\bar{X}}=1.09$
b.

$\mu_{\bar{X}}$ stays the same but

$\sigma_{\bar{X}}$ decreases to

$0.6$