. A quality analyst wants to determine whether three machines, all producing the same oduct, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output m each machine, with the following results: MACHINE MEASUREMENTS

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econometrics

56
Q5. A quality analyst wants to determine whether three machines, all producing the same
57
product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output
58
from each machine, with the following results:
59
МАСHINE
MEASUREMENTS
60
#1
17
15
15
17
61
#2
16
25
18
25
62
# 3
23
24
23
22
63
For upper and lower control limits of 23.29 and 16.71, which machine(s), if any, appear(s) to have an
64
out-of-control process mean?
Q5.
65
66
Transcribed Image Text:56 Q5. A quality analyst wants to determine whether three machines, all producing the same 57 product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output 58 from each machine, with the following results: 59 МАСHINE MEASUREMENTS 60 #1 17 15 15 17 61 #2 16 25 18 25 62 # 3 23 24 23 22 63 For upper and lower control limits of 23.29 and 16.71, which machine(s), if any, appear(s) to have an 64 out-of-control process mean? Q5. 65 66
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