Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)
11th Edition
ISBN: 9780135639221
Author: Jay Heizer, Barry Render
Publisher: PEARSON+
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Chapter 6.S, Problem 25P
a)
Summary Introduction
To determine: The value of
Introduction: Control charts used to determine whether the process is under control or not. Attributes and variables are the factors under the control charts.
b)
Summary Introduction
To determine: The use of quality tools to determine the source of billing defects.
Introduction: Control charts used to determine whether the process is under control or not. Attributes and variables are the factors under the control charts.
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The accounts receivable department at Rick Wing Manufacturing has been having difficulty getting customers to pay
the full amount of their bills. Many customers complain that the bills are not correct and do not reflect the materials that
arrived at their receiving docks. The department has decided to implement SPC in its billing process. To set up control
charts, 10 samples of 100 bills each were taken over a month's time and the items on the bills checked against the bill
of lading sent by the company's shipping department to determine the number of bills that were not correct. The results
were:
1
2
3
4
5
6
Sample No.
7
8
9
10
No. of Incorrect Bills
7
5
16
4
0
5
3
6
9
2
a) The value of mean fraction defective (p) = (enter your response as a fraction between 0 and 1, rounded to four
decimal places).
The accounts receivable department at Rick Wing Manufacturing has been having difficulty getting customers to pay the full amount of their bills. Many customers complain that the bills are not correct and do not reflect the materials that arrived at their receiving docks. The department has decided to implement SPC in its billing process. To set up control charts, 10 samples of
50
bills each were taken over a month's time and the items on the bills checked against the bill of lading sent by the company's shipping department to determine the number of bills that were not correct. The results were:
Sample No.
1
2
3
4
5
6
7
8
9
10
No. of Incorrect Bills
6
5
11
4
0
5
3
4
7
2
a) The value of mean fraction defective
(p)
=
nothing
(enter your response as a fraction…
The accounts receivable department at Rick WingManufacturing has been having difficulty getting customers topay the full amount of their bills. Many customers complainthat the bills are not correct and do not reflect the materials thatarrived at their receiving docks. The department has decided toimplement SPC in its billing process. To set up control charts, 10samples of 50 bills each were taken over a month’s time and theitems on the bills checked against the bill of lading sent by thecompany’s shipping department to determine the number of billsthat were not correct. The results were:
SAMPLENO.
NO. OFINCORRECTBILLS
SAMPLENO.
NO. OFINCORRECTBILLS1 6 6 52 5 7 33 11 8 44 4 9 75 0 10 2a) Determine the value of p -bar, the mean fraction defective.Then determine the control limits for the p -chart using a99.73% confidence level (3 standard deviations). Has thisprocess been in control? If not, which samples were out ofcontrol?b) How might you use the quality tools discussed in Chapter 6to…
Chapter 6 Solutions
Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)
Ch. 6.S - Prob. 1DQCh. 6.S - Define in statistical control.Ch. 6.S - Prob. 3DQCh. 6.S - Prob. 4DQCh. 6.S - Prob. 5DQCh. 6.S - Prob. 6DQCh. 6.S - Prob. 7DQCh. 6.S - Prob. 8DQCh. 6.S - Prob. 9DQCh. 6.S - Prob. 10DQ
Ch. 6.S - Prob. 11DQCh. 6.S - Prob. 12DQCh. 6.S - Prob. 13DQCh. 6.S - Prob. 14DQCh. 6.S - Prob. 15DQCh. 6.S - Prob. 16DQCh. 6.S - Prob. 17DQCh. 6.S - Prob. 18DQCh. 6.S - Prob. 19DQCh. 6.S - Prob. 1PCh. 6.S - Prob. 2PCh. 6.S - Prob. 3PCh. 6.S - Prob. 4PCh. 6.S - Prob. 5PCh. 6.S - Prob. 6PCh. 6.S - Prob. 7PCh. 6.S - Prob. 8PCh. 6.S - Prob. 9PCh. 6.S - Prob. 10PCh. 6.S - Prob. 11PCh. 6.S - Prob. 12PCh. 6.S - Prob. 13PCh. 6.S - Prob. 14PCh. 6.S - Prob. 15PCh. 6.S - Prob. 16PCh. 6.S - Prob. 17PCh. 6.S - Prob. 18PCh. 6.S - Prob. 19PCh. 6.S - Prob. 20PCh. 6.S - Prob. 21PCh. 6.S - Prob. 22PCh. 6.S - Prob. 23PCh. 6.S - Prob. 24PCh. 6.S - Prob. 25PCh. 6.S - Prob. 28PCh. 6.S - Prob. 29PCh. 6.S - Prob. 30PCh. 6.S - Prob. 32PCh. 6.S - Prob. 33PCh. 6.S - Prob. 34PCh. 6.S - Prob. 35PCh. 6.S - Prob. 36PCh. 6.S - Prob. 37PCh. 6.S - Prob. 39PCh. 6.S - Prob. 40PCh. 6.S - Prob. 41PCh. 6.S - Prob. 42PCh. 6.S - Prob. 43PCh. 6.S - Prob. 44PCh. 6.S - Prob. 45PCh. 6.S - Prob. 46PCh. 6.S - Prob. 48PCh. 6.S - Prob. 49PCh. 6.S - Prob. 50PCh. 6.S - Prob. 51PCh. 6.S - Prob. 52PCh. 6.S - Prob. 53PCh. 6.S - Prob. 54PCh. 6.S - Prob. 55PCh. 6.S - Prob. 1CSCh. 6.S - Prob. 2CSCh. 6.S - Prob. 1.1VCCh. 6.S - Prob. 1.2VCCh. 6.S - Prob. 1.3VCCh. 6.S - Prob. 2.1VCCh. 6.S - Prob. 2.2VCCh. 6.S - Prob. 2.3VCCh. 6.S - Prob. 2.4VCCh. 6 - Prob. 1EDCh. 6 - Prob. 1DQCh. 6 - Prob. 2DQCh. 6 - Prob. 3DQCh. 6 - Prob. 4DQCh. 6 - Prob. 5DQCh. 6 - Prob. 6DQCh. 6 - Prob. 7DQCh. 6 - Prob. 8DQCh. 6 - Prob. 9DQCh. 6 - Prob. 10DQCh. 6 - Prob. 11DQCh. 6 - Prob. 12DQCh. 6 - Prob. 13DQCh. 6 - Prob. 14DQCh. 6 - Prob. 15DQCh. 6 - Prob. 16DQCh. 6 - Prob. 17DQCh. 6 - Prob. 18DQCh. 6 - An avant-garde clothing manufacturer runs a series...Ch. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Kathleen McFaddens restaurant in Boston has...Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 1CSCh. 6 - Prob. 2CSCh. 6 - Prob. 3CSCh. 6 - Prob. 1.1VCCh. 6 - Prob. 1.2VCCh. 6 - Prob. 1.3VCCh. 6 - Prob. 1.4VCCh. 6 - Prob. 2.1VCCh. 6 - Prob. 2.2VCCh. 6 - Prob. 2.3VCCh. 6 - Prob. 2.4VCCh. 6 - Prob. 3.1VCCh. 6 - Prob. 3.2VCCh. 6 - Prob. 3.3VCCh. 6 - Prob. 3.4VCCh. 6 - Prob. 3.5VC
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- The accounts receivable department at Rick WingManufacturing has been having difficulty getting customers topay the full amount of their bills. Many customers complainthat the bills are not correct and do not reflect the materials thatarrived at their receiving docks. The depar tment has decided toimplement SPC in its billing p rocess. To set up control charts,10 samples of 50 bills each were taken over a month's time andthe items on the bills checked against the bill of lading sent by thecompany's shipping department to determine the number of billsthat were not correct. The results were: a) Determine the value of p-bar, the mean fraction defective.T hen determine the control limits for the p-chart using a99.73% confidence level (3 standard deviations). Has thisp rocess been in control? If not, which samples were out ofcontrol?b) How might you use the quality tools discussed in…arrow_forwardList three actions that can help to make findings and recommendations more persuasive. How can management use control charts as part of their ongoing monitoring activities?arrow_forwardThe school board is trying to evaluate a new math program introduced to second-graders in five elementary schools across the county this year. A sample of the student scores on standardized math tests in each elementary school yielded the following data: School No. of Test Errors A 75 B 38 C 42 D 47 E 61 For the test errors, the c-chart with control limits that contain 99.73% of the random variation in test scores is: Part 2 UCLc = enter your response here errors (round your response to two decimal places). b) Has the process been in control? c) If the sample size were 20 instead, how would your limits and conclusions change? UCLp= ________(enter your response as a number between 0 and 1, rounded to three decimal places). LCLp= ________(enter your response as a number between 0 and 1, rounded to three decimal places).arrow_forward
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