Answers (Latest Update 2026)
For a tire manufacturer, measurements are taken each day. For
each day, four samples are measured. See data below.
Day
1
2
3
4
5
Tire 1
38
31
11
40
32
Tire 2
29
32
27
,ITEC 3200 - Final Exam Questions and
Answers (Latest Update 2026)
35
36
Tire 3
35
46
19
12
28
Tire 4
31
29
24
37
35
a. What are the X-Bar chart centerline, upper and lower control
limit values?
b. What are the R chart centerline, upper and lower control limit
values? -
correct answer ✅n = 4
LCLx-bar 18.98
, ITEC 3200 - Final Exam Questions and
Answers (Latest Update 2026)
Center 30.35
UCLx-bar 41.72
LCLr 0
Center 15.6
UCLr 35.6
Name 5 Quality Gurus:
1)
2)
3)
4)
5) -
correct answer ✅1) W. Edward Deming
2) Joseph Juran
3) Philip Crosby
4) Kaoru Ishikawa
5) Genichi Taguchi
The weights of a sample of nine boxes sent by UPS are: 12, 6, 9, 7,
13, 6, 5, 11, and 8. Compute the following summary statistics.