Understanding process measurement variation

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Week4CaseStudyData1.xlsx
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Data Set Method 1-Yardstick

Entries Inches Feet
1 77 Convert inches to feet
2 68 1foot =12 inches
3 68
4 69
5 64
6 77
7 72
8 73
9 77
10 74
11 77
12 72
13 70
14 72
15 72
16 78
17 72
18 70
19 71
20 69

Data Set Method 2-Tape Measure

Entries Inches Feet
1 72 Convert inches to feet
2 72 1foot =12 inches
3 73
4 77
5 72
6 72
7 71
8 73
9 72
10 73
11 73
12 70
13 77
14 72
15 72
16 73
17 77
18 72
19 72
20 73

Mean & Stand. Dev. Calculation

Method 1 - Yardstick Method 2 -Tape Measure
Observation Measurement Observation Measurement
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
Calculate Calculate
Average Average
Standard Deviation Standard Deviation