a) List allsamples size 2 from left to right using without replacement and compute the mean of each sample. ( Round your mean values to 1 decimal place.)

Sample. Values. Sum. Mean

1

2

3

4

5

6

7

8

9

10

b) Compute the mean of the distribution of sample means and the population mean. (Round your answer to 1 decimal place.)

A normal population has a mean of 78 and a standard deviation of 6. You select a sample of 50. Compute the probability the sample mean is :( Round z value to 2 decimal places and final answer to 4 decimal places )