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 Weights 1 26.1 24.4 25.6 25.2 2 25.2 25.9 25.1 24.8 25.6 24.5 25.7 25.1 4 25.5 26.8 25.1 25.0 25.2 25.2 26.3 25.7 6 26.6 24,1 25.5 24,0 7 27.6 26.0 24.9 25,3 8 24.5 23.1 23.9 24.7 9 24.1 25.0 23.5 24.9 10 25.8 25.7 24.3 27,3 11 22,5 23.0 23,7 24.0 12 24,5 24,8 23,2 24,2 13 24,4 24.5 25.9 25.5 14 23,1 23,3 24.4 24.7 15 24.6 25.1 24,0 25.3 16 24.4 24.4 22.8 23.4 17 25.1 24.1 23.9 26.2 18 24.5 24.5 26.0 26.2 19 25.3 27.5 24.3 25.5 20 24.6 25,3 25.5 24.3 21 24,9 24,4 25.4 24.8 22 25.7 24.6 26.8 26.9 23 24,8 24.3 25.0 27.2 24 25.4 25.9 26.6 24.8 25 26.2 23.5 23.7 25.0 E Click here for the Excel Data File Determine the control limits for the mean and range. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) UCL = UCL = Mean of the sample means LCL = Mean of the sample ranges LCL =

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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
Weights
1
26.1
24.4
25.6
25.2
2
25.2
25.9
25.1
24.8
25.6
24.5
25.7
25.1
4
25.5
26.8
25.1
25.0
25.2
25.2
26.3
25.7
6
26.6
24.1
25.5
24.0
7
27.6
26.0
24.9
25.3
8.
24.5
23.1
23.9
24.7
9.
24.1
25.0
23.5
24.9
10
25.8
25.7
24.3
27.3
11
22.5
23.0
23.7
24.0
12
24.5
24.8
23.2
24.2
13
24.4
24.5
25.9
25.5
14
23.1
23.3
24.4
24.7
15
24.6
25.1
24.0
25.3
16
24.4
24.4
22.8
23.4
17
25.1
24.1
23.9
26.2
18
24.5
24.5
26.0
26.2
19
25.3
27.5
24.3
25.5
20
24.6
25.3
25.5
24.3
21
24.9
24.4
25.4
24.8
22
25.7
24.6
26.8
26.9
23
24.8
24.3
25.0
27.2
24
25.4
25.9
26.6
24.8
25
26.2
23.5
23.7
25.0
Click here for the Excel Data File
Determine the control limits for the mean and range. (Leave no cells blank - be certain to enter "O" wherever required. Round your
answers to 2 decimal places.)
Mean of the sample means
LCL =
UCL =
Mean of the sample ranges
LCL =
UCL =
Is the process out of control at any time?
Transcribed Image Text: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 Weights 1 26.1 24.4 25.6 25.2 2 25.2 25.9 25.1 24.8 25.6 24.5 25.7 25.1 4 25.5 26.8 25.1 25.0 25.2 25.2 26.3 25.7 6 26.6 24.1 25.5 24.0 7 27.6 26.0 24.9 25.3 8. 24.5 23.1 23.9 24.7 9. 24.1 25.0 23.5 24.9 10 25.8 25.7 24.3 27.3 11 22.5 23.0 23.7 24.0 12 24.5 24.8 23.2 24.2 13 24.4 24.5 25.9 25.5 14 23.1 23.3 24.4 24.7 15 24.6 25.1 24.0 25.3 16 24.4 24.4 22.8 23.4 17 25.1 24.1 23.9 26.2 18 24.5 24.5 26.0 26.2 19 25.3 27.5 24.3 25.5 20 24.6 25.3 25.5 24.3 21 24.9 24.4 25.4 24.8 22 25.7 24.6 26.8 26.9 23 24.8 24.3 25.0 27.2 24 25.4 25.9 26.6 24.8 25 26.2 23.5 23.7 25.0 Click here for the Excel Data File Determine the control limits for the mean and range. (Leave no cells blank - be certain to enter "O" wherever required. Round your answers to 2 decimal places.) Mean of the sample means LCL = UCL = Mean of the sample ranges LCL = UCL = Is the process out of control at any time?
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