Homework Answers
Formulas used are shown below -
Hence,
19.
Option c is correct. Both a and b are true.
20.
Option a is correct as all the values of r lies under UCL and LCL of r-chart. Hence, the process is in control.
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Question 19 (2 points) (19-20) The Johnson Company produces a lift truck. A metal rod is...
A) Set the control limits for the process for the x(bar) chart when the maching is working proper...
round to 3 decimal places ?
A) Set the control limits for the process for the x(bar) chart when the maching is working properly UCL-x-? grams (round to two decimal places) LCL-x grams (round to two decimal places) B) Set the control limits for this process for the R-chart. UCLrgrams (round to two decimal places) LCLr grams (round to two decimal places) Refer to the table Factors for Computing Control Chart Limits (3 sigma) for this problem. Your supervisor, Lisa...
that was the complete data the second picture is the control limits Refer to Table S61...
that was the complete data the second picture is the control
limits
Refer to Table S61 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Ross Hopkins is attempting to monitor a filling process that has an overall average of 705 mL. The average range R is 8 ml. For a sample size of 10, the control limits for 3-sigma x chart are: Upper Control Limit (UCL.2)= ml (round your response to three decimal places). Lower Control...
The Canine Gourmet Company produces delicious dog treats for canines with discriminating tastes. Management wants the...
The Canine Gourmet Company produces delicious dog treats for canines with discriminating tastes. Management wants the box-filling line to be set so that the process average weight per packet is 47 grams. To make sure that the process is in control, an inspector at the end of the filling line periodically selects a random box of 8 packets and weighs each packet. When the process is in control, the range in the weight of each sample has averaged 7 grams....
The Money Pit Mortgage Company is interested in monitoring the performance of the mortgage process. Fifteen...
The
Money Pit Mortgage Company is interested in monitoring the
performance of the mortgage process. Fifteen samples of five
completed mortgage transactions each were taken during a period
when the process was believed to be in control. The times to
complete the transactions were measured. The means and ranges of
the mortgage process transaction times, measured in days, are as
follows:
b.
Sample123456789 10 11 12 13 14 15 Mean 5 103 7 8 13 14 9 9 9 5...
You are monitoring length of corn that your sister is selling at the farmer’s market. You...
You are monitoring length of corn that your sister is selling at the farmer’s market. You have following data over 4 days. Draw 3 sigma level control charts (X-bar and R-chart). Calculate and show values for UCL, CL, and LCL using the table given below. Discuss your graphs. Is everything okay? day 1 day 2 day 3 day 4 15 13 10 8 13 12 9 7 15 11 11 9 Factors for 3 Sigma level Sample Control Limit...
Problem 6s.11ac Question Help Refer to Table $6.1 - Factors for Computing Control Chart Limits (3...
Problem 6s.11ac Question Help Refer to Table $6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Twelve samples, each containing five parts, were taken from a process that produces steel rods at Emmanual Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: Sample Sample Mean Range qe (in.) (in.) 9.402 0.033 9.404 0.041 9.391 0.034 9.408 0.051 9.399 0.031...
QC.58 Dairy Man Industries produces a variety of dairy products such as cheese, sour cream and...
QC.58 Dairy Man Industries produces a variety of dairy products such as cheese, sour cream and yogurt. One of their more popular products is a 3-pound block of sliced American cheese. They have a high-speed manufacturing line that automatically slices, stacks, and packages this product. Each hour their automated equipment will sample 20 blocks of cheese to make sure they are close in weight to the target value of 48.1 ounces and within control limits. The table below contain the...
Thanks so much :) Formulas and Tables for Questions 28-31 Setting Mean Chart Limits ( -chart)...
Thanks so much :)
Formulas and Tables for Questions 28-31 Setting Mean Chart Limits ( -chart) Upper controllimit. UCL, = + A,R Lower controllimit, LCL, = 2 - A R Setting Range Chart Limits (R-chart) Upper controllimit, UCLR=DAR Lower controllimit, LCLR=DER where - mean of the sample means, A2, D3, D4-table factors for control charts R-average range of the samples R-average range of the samples Tables Table 3. Factors for Computing Control Chart Limits (3 sigma) SAMPLE SIZE, n MEAN...
4 Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles...
4 Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles from the bottle machine and measures the outside diameter of the bottle neck, a critical quality dimension that determines whether the bottle cap will fit properly. The dimensions (in.) from the last six samples are Bottle Sample 1 2 3 0.592 0.588 0.590 0.617 2 0.598 0.587 0.580 0.585 3 0.613 0.594 0.615 0.589 0.608 0.610 0.623 0.623 5 0.572 0.623 0.572 0.585 0.582...
Problems 21- 26 are based on the following information: A paper-cutting machine is operating in a...
Problems 21- 26 are based on the following information: A paper-cutting machine is operating in a process that is producing paper of a standard length (11.5 inches). As the paper is being cut by the machine, periodically subgroups of five pieces are selected. The results for a set of 20 consecutive subgroups were as follows: Subgroup Range Ri Subgroup Mean X. Subgroup Subgroup Range Ri Subgroup Mean X Subgroup Number Number 0.061 11.494 11 0.043 11.523 1 0.054 11.506 0.049...
round to 3 decimal places ?
A) Set the control limits for the process for the x(bar) chart when the maching is working properly UCL-x-? grams (round to two decimal places) LCL-x grams (round to two decimal places) B) Set the control limits for this process for the R-chart. UCLrgrams (round to two decimal places) LCLr grams (round to two decimal places) Refer to the table Factors for Computing Control Chart Limits (3 sigma) for this problem. Your supervisor, Lisa...
that was the complete data the second picture is the control
limits
Refer to Table S61 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Ross Hopkins is attempting to monitor a filling process that has an overall average of 705 mL. The average range R is 8 ml. For a sample size of 10, the control limits for 3-sigma x chart are: Upper Control Limit (UCL.2)= ml (round your response to three decimal places). Lower Control...
The Canine Gourmet Company produces delicious dog treats for canines with discriminating tastes. Management wants the box-filling line to be set so that the process average weight per packet is 47 grams. To make sure that the process is in control, an inspector at the end of the filling line periodically selects a random box of 8 packets and weighs each packet. When the process is in control, the range in the weight of each sample has averaged 7 grams....
The
Money Pit Mortgage Company is interested in monitoring the
performance of the mortgage process. Fifteen samples of five
completed mortgage transactions each were taken during a period
when the process was believed to be in control. The times to
complete the transactions were measured. The means and ranges of
the mortgage process transaction times, measured in days, are as
follows:
b.
Sample123456789 10 11 12 13 14 15 Mean 5 103 7 8 13 14 9 9 9 5...
Problem 6s.11ac Question Help Refer to Table $6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Twelve samples, each containing five parts, were taken from a process that produces steel rods at Emmanual Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: Sample Sample Mean Range qe (in.) (in.) 9.402 0.033 9.404 0.041 9.391 0.034 9.408 0.051 9.399 0.031...
Thanks so much :)
Formulas and Tables for Questions 28-31 Setting Mean Chart Limits ( -chart) Upper controllimit. UCL, = + A,R Lower controllimit, LCL, = 2 - A R Setting Range Chart Limits (R-chart) Upper controllimit, UCLR=DAR Lower controllimit, LCLR=DER where - mean of the sample means, A2, D3, D4-table factors for control charts R-average range of the samples R-average range of the samples Tables Table 3. Factors for Computing Control Chart Limits (3 sigma) SAMPLE SIZE, n MEAN...
4 Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles from the bottle machine and measures the outside diameter of the bottle neck, a critical quality dimension that determines whether the bottle cap will fit properly. The dimensions (in.) from the last six samples are Bottle Sample 1 2 3 0.592 0.588 0.590 0.617 2 0.598 0.587 0.580 0.585 3 0.613 0.594 0.615 0.589 0.608 0.610 0.623 0.623 5 0.572 0.623 0.572 0.585 0.582...
Problems 21- 26 are based on the following information: A paper-cutting machine is operating in a process that is producing paper of a standard length (11.5 inches). As the paper is being cut by the machine, periodically subgroups of five pieces are selected. The results for a set of 20 consecutive subgroups were as follows: Subgroup Range Ri Subgroup Mean X. Subgroup Subgroup Range Ri Subgroup Mean X Subgroup Number Number 0.061 11.494 11 0.043 11.523 1 0.054 11.506 0.049...
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