Calculate R-Bar

/in /by
  1. Calculate R-Bar?
  2. Upper control limit for the range?
  3. Upper control limit for the individuals?
  4. Lower control limit for the individuals?
  5. What is the chart telling you?
  6. Is there adequate discrimination?

 

Data: Hours
Period Cycle Time
1 45
2 33
3 44
4 30
5 51
6 47
7 39
8 34
9 69
10 43
11 29
12 38
13 45
14 49
15 73
16 38
17 50
18 40
19 57
20 36
21 31
22 46
23 40
24 51
25 48
26 37
27 42
28 50

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