28. FILE Steele Breakfast Foods Inc. produces a popular brand of raisin bran cereal. The
package indicates it contains 25.0 ounces of cereal. To ensure the product quality, the
Steele inspection department makes hourly checks on the production process. As a part
of the hourly check, four boxes are selected and their contents weighed. The results for
25 samples are as follows:
Sample
Sample
1
2
3
4
5
6
7
8
9
10
11
12
13
26.1
25.2
25.6
25.5
25.2
26.6
27.6
24.5
24.1
25.8
22.5
24.5
24.4
Weights
24.4
25.6
25.9 25.1
24.5 25.7
26.8 25.1
25.2 26.3
24.1
25.5
26.0 24.9
23.1 23.9
25.0 23.5
25.7 24.3
23.0 23.7
24.8 23.2
24.5 25.9
25.2
24.8
25.1
25.0
25.7
24.0
25.3
24.7
24.9
27.3
24.0
24.2
25.5
14
15
16
17
18
19
20
21
22
23
24
25
23.1
24.6
24.4
25.1
24.5
25.3
24.6
24.9
25.7
24.8
25.4
26.2
Weights
23.3
24.4
25.1 24.0
24.4 22.8
24.1 23.9
24.5 26.0
27.5 24.3
25.3 25.5
24.4 25.4
24.6 26.8
24.3 25.0
25.9 26.6
23.5
24.7
25.3
23.4
26.2
26.2
25.5
24.3
24.8
26.9
27.2
24.8
25.0
23.7
Develop an appropriate control chart. What are the limits? Is the process out of control
at any
time?
Answers: 2
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28. FILE Steele Breakfast Foods Inc. produces a popular brand of raisin bran cereal. The
package in...
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