a. Does viscosity follow a normal distribution? b. Set up a control chart on viscosity and a moving range chart. Does the process exhibit statistical control? Estimate the process mean and standard deviation. The next five measurements on viscosity are 3163, 3199,3054,3147, and 3156. Do these measurements indicate that the process is in statistical control? C. d
a. Does viscosity follow a normal distribution? b. Set up a control chart on viscosity and a moving range chart. Does the process exhibit statistical control? Estimate the process mean and standard deviation. The next five measurements on viscosity are 3163, 3199,3054,3147, and 3156. Do these measurements indicate that the process is in statistical control? C. d
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Author:Amos Gilat
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
Transcribed Image Text:3. The viscosity of a polymer is measured hourly. Measurements for the last 20 hours are shown as follows:
Test Viscosity Test Viscosity
1
2838
11
3174
2
2785
12
3102
3
13
2762
4
14
2975
5
15
2719
6
16
2861
7
17
2797
8
18
3078
9
19
2964
10
20
2805
3058
3064
2996
2882
2878
2920
3050
2870
a. Does viscosity follow a normal distribution?
b.
Set up a control chart on viscosity and a moving range chart. Does the process exhibit statistical control?
Estimate the process mean and standard deviation.
C.
d. The next five measurements on viscosity are 3163, 3199,3054,3147, and 3156. Do these measurements indicate that the
process is in statistical control?
Expert Solution

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Step 1: Required table
VIEWStep 2: Histogram
VIEWSolution
VIEWStep 3: Hypothesis test
VIEWStep 4: Required table and control limits
VIEWStep 5: Chart of viscosity
VIEWStep 6: MR chart of viscosity
VIEWStep 7: Mean and standard deviation
VIEWStep 8: New chart of viscosity
VIEWStep 9: New music MR chart of viscosity
VIEWStep 10: Coclusion for part d
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