A store manager states that the average number of days per year missed by employ
ID: 3178504 • Letter: A
Question
A store manager states that the average number of days per year missed by employees due to illness is less than the national average of 10. The following data show the number of days missed by 40 randomly selected employees last year. Is there sufficient evidence to believe the manager’s statement at = 0.05. (theta) =3.63. Use the P-value method. Show all the steps in the Procedural table.
0
6
12
3
3
5
4
1
3
9
6
0
7
6
3
4
7
4
7
1
0
8
12
3
2
5
12
5
12
3
2
5
3
11
8
2
2
4
1
9
0
6
12
3
3
5
4
1
3
9
6
0
7
6
3
4
7
4
7
1
0
8
12
3
2
5
12
5
12
3
2
5
3
11
8
2
2
4
1
9
Explanation / Answer
One-Sample T: Days
Test of mu = 10 vs < 10
95%
Upper
Variable N Mean StDev SE Mean Bound T P
Days 40 5.00000 3.53735 0.55930 5.94236 -8.94 0.000
Since p value is less than 0.05 we reject the null hypothesis and conclude that the average number of days per year missed by employees is less than 10 days
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