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

The Sampling Distribution of the Sample Mean

Answers

1. 
a. \mu_{X}=128, \sigma_{\bar{X}}=3.67

b. 0.9936

3. 
a. \mu_{\bar{X}}=73.5, \sigma_{\bar{X}}=0.456

b. 0.0005

5. 
a. 0.0918
b. \mu_{\bar{X}}=25.6, \sigma_{\bar{X}}=1.1

c. 0.0000

7. 
a. \mu_{X}=557, \sigma_{X}=4.9497

b. 0.0043

9. 
a. 0.5818
b. \mu_{\bar{X}}=1214, \sigma_{\bar{X}}=24.4

c. 0.9998

11. 
a. \mu_{\bar{X}}=72, \sigma_{\bar{X}}=0.8944

b. 0.0250

13. 0.9940

15. 0.9994

17. 
a. 0.8036

b. 1.0000

19. 0.9994

21. 

a. 0.2955
b. 0.8977

23. 0.9251

25. 0.9982
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