3. A company manufactures water pumps. The quality control inspec

Question

3. A company manufactures water pumps. The quality control inspector of the company takes a sample of 100 water pumps at regular intervals. The numbers of defective pumps for 15 samples are given below:

Sample No.	Defective Pumps	Sample No.	Defective Pumps	Sample No.	Defective Pumps
1	5	6	0	11	6
2	6	7	4	12	1
3	3	8	8	13	10
4	2	9	2	14	2
5	1	10	2	15	1

Use the data to construct a suitable chart. Observe the results and comment on the control of the process as indicated by the chart.

19 Jan 2026

Answer :

Word Count : 260

Since the sample size is constant at 100 pumps for each sample and the quality characteristic is the number of defectives, a p-chart is the suitable control chart. The total number of defective pumps observed in the 15 samples is 5 + 6 _____ __________ __________ ____ ______ _________ ___.
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Related Questions

	Player B
		I	II	III	IV	V
Player A	I	2	4	3	8	4
	II	5	6	3	7	8
	III	6	7	9	8	7
	IV	4	2	8	4	3

Hour	1	2	3	4
1	50	52	51	49
2	51	50	53	52
3	49	50	48	51
4	52	54	53	51
5	50	49	51	50
6	53	52	54	55
7	48	49	50	47
8	51	52	50	51
9	54	55	53	54
10	50	51	49	50

Sample No.	Defective Pumps	Sample No.	Defective Pumps	Sample No.	Defective Pumps
1	5	6	0	11	6
2	6	7	4	12	1
3	3	8	8	13	10
4	2	9	2	14	2
5	1	10	2	15	1

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Hour	1	2	3	4
1	50	52	51	49
2	51	50	53	52
3	49	50	48	51
4	52	54	53	51
5	50	49	51	50
6	53	52	54	55
7	48	49	50	47
8	51	52	50	51
9	54	55	53	54
10	50	51	49	50

Hour	1	2	3	4
1	50	52	51	49
2	51	50	53	52
3	49	50	48	51
4	52	54	53	51
5	50	49	51	50
6	53	52	54	55
7	48	49	50	47
8	51	52	50	51
9	54	55	53	54
10	50	51	49	50

Hour	1	2	3	4
1	50	52	51	49
2	51	50	53	52
3	49	50	48	51
4	52	54	53	51
5	50	49	51	50
6	53	52	54	55
7	48	49	50	47
8	51	52	50	51
9	54	55	53	54
10	50	51	49	50