The following information gives the number of days absent from work for a population of 5 workers at a small factory.
Worker
Number of Days Absent
A
5
B
7
C
1
D
4
E
8
?
a.Find the mean and the standard deviation for the population.b.Samples of size 2 will be drawn from the population. Use the answers in part a to calculate the expected value and the standard deviation of the sampling distribution of the sample mean.c.Find all the samples of 2 workers that can be extracted from this population. Choose the samples without replacement.d.Compute the sample mean 
for each of the samples in Part c.
What will be an ideal response?
?
| a. | 5; 2.738 |
| b. | 5; 1.677 |
| c. | AB, AC, AD, AE, BC, BD, BE, CD, CE, DE |
| d. | 6, 3, 4.5, 6.5, 4, 5.5, 7.5, 2.5, 4.5, 6 |
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