The following table gives the results of daily inspections of 800 units of a standard-design electronic device produced during the month of June 2020.

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Course dashboard o
The following table gives the results of daily inspections of 800 units of a standard-design
wered
electronic device produced during the month of June 2020.
cof
estion
Date in June Rejects
3
10
4.
12
16
6
10
7
12
10
21
11
17
12
12
13
13
14
14
17
14
18
20
19
22
20
12
21
14
24
15
25
15
26
27
10
28
12
a)
Estimate the total proportion of rejects during this month.
The proportion rejected is: 0.013
b)
Establish a single set of control limits for the daily fraction of rejects, showing the daily results.
The proportion of the rejects over the 20 working days of June 2020 is as follow:
Date in June
Proportion
3
4
21
MAY
280
VECDEWUR
MacBook Air
LO
Transcribed Image Text:Course dashboard o The following table gives the results of daily inspections of 800 units of a standard-design wered electronic device produced during the month of June 2020. cof estion Date in June Rejects 3 10 4. 12 16 6 10 7 12 10 21 11 17 12 12 13 13 14 14 17 14 18 20 19 22 20 12 21 14 24 15 25 15 26 27 10 28 12 a) Estimate the total proportion of rejects during this month. The proportion rejected is: 0.013 b) Establish a single set of control limits for the daily fraction of rejects, showing the daily results. The proportion of the rejects over the 20 working days of June 2020 is as follow: Date in June Proportion 3 4 21 MAY 280 VECDEWUR MacBook Air LO
27
10
28
12
a)
Estimate the total proportion of rejects during this month.
The proportion rejected is: 0.013
b) Establish a single set of control limits for the daily fraction of rejects, showing the daily results.
The proportion of the rejects over the 20 working days of June 2020 is as follow:
Date in June
Proportion
3
6.
7
10
11
12
13
14
17
18
19
20
21
24
25
26
27
28
The control limits are as follows:
UCL = 3.726
LCL =
CL = 0.018
c)
Comment on the stability of the manufacturing process.
The process is Stable
21
MAY
ottv
R mn
MacBook Air
LO
Transcribed Image Text:27 10 28 12 a) Estimate the total proportion of rejects during this month. The proportion rejected is: 0.013 b) Establish a single set of control limits for the daily fraction of rejects, showing the daily results. The proportion of the rejects over the 20 working days of June 2020 is as follow: Date in June Proportion 3 6. 7 10 11 12 13 14 17 18 19 20 21 24 25 26 27 28 The control limits are as follows: UCL = 3.726 LCL = CL = 0.018 c) Comment on the stability of the manufacturing process. The process is Stable 21 MAY ottv R mn MacBook Air LO
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