Homework Answers
| For the control limits, we find average and standard deviation | ||||||||
| When we add 3 times standard deviation to average , we get upper control limit | ||||||||
| When we deduct 3 times standard deviation from average, we get lower control limit | ||||||||
| Sample | (X-average) | Square | ||||||
| 15 | 3.4 | 11.56 | ||||||
| 10 | -1.6 | 2.56 | ||||||
| 12 | 0.4 | 0.16 | ||||||
| 9 | -2.6 | 6.76 | ||||||
| 11 | -0.6 | 0.36 | ||||||
| 11 | -0.6 | 0.36 | ||||||
| 15 | 3.4 | 11.56 | ||||||
| 9 | -2.6 | 6.76 | ||||||
| 10 | -1.6 | 2.56 | ||||||
| 14 | 2.4 | 5.76 | ||||||
| Total | 48.4 | |||||||
| Average= sumof numers/Count= | 11.6 | |||||||
| Standard deviation= Square root of (X-Average)^2/N | square root of 48.4/10 | |||||||
| Standard deviation= 2.2 | ||||||||
| Upper control limit= 11.6+3*2.2= 18.2 | ||||||||
| Lower control limit= 11.6-3*2.2=5 |
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Question 15 1 pts Using the following sample set, determine the upper and lower control limits...
a) What are the lower and upper control limits for this chart if these limits are...
a) What are the lower and upper control limits for this chart if
these limits are chosen to be four standard deviations from
thetarget?
Upper Control Limit (UCL - subscript x) = _______ calories
(enter your response as an integer).
Lower Control Limit (LCL- subscript x) = ________calories
(enter your response as an integer).
b) What are the limits with three standard deviations from the
target?
The 3-sigma x overbarx chart control limitsare:
Upper Control Limit (UCL - subscript...
a production process is considered in control if up to 4% of items produced are defective. samples of size 100 are used for the inspection process. determine the upper and lower control limits for the...
a production process is considered in control if up to 4% of items produced are defective. samples of size 100 are used for the inspection process. determine the upper and lower control limits for the p chart. A. UCL= .0988 LCL=0.0000 B. UCL=.0888 LCL= 0.000 C. UCL= .0788 LCL= .01 D. UCL= 0.0688 LCL= .02
1st*variability is: in control/out of control 2nd*no samples fall/one/two/more 3rd* in control/out of control The following...
1st*variability is: in
control/out of control
2nd*no samples fall/one/two/more
3rd* in control/out of control
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five points in time during a manufacturing cycle. X Sample R 1 95.72 1.0 95.24 2 0.9 0.9 95.18 95.42 0.4 4 5 95.46 0.5 95.32 1.1 6 7 95.40 0.9 95.44 0.3 9 95.08 0.2 10 95.50 0.6 11 95.80 0.6 12...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five points in time during a manufacturing cycle. Sample x R 1 95.72 1.0 2 95.24 0.9 3 95.18 0.9 4 95.48 0.4 5 95.46 0.5 6 95.32 1.1 7 95.40 1.0 8 95.44 0.3 9 95.08 0.2 9 10 10 95.50 0.6 11 95.80 0.6 12 95.22 0.2 13 95.60 1.3 14 95.22 0.5 15 95.04...
Product filling weights are normally distributed with a mean of 365 grams and a standard deviation of 19 grams. a. Compute the chart upper control limit and lower control limit for this process if sa...
Product filling weights are normally distributed with a mean of 365 grams and a standard deviation of 19 grams. a. Compute the chart upper control limit and lower control limit for this process if samples of size 10, 20 and 30 are used (to 2 decimals). Use Table 19.3. For samples of size 10 UCL =| LCL For a sample size of 20 UCL = LCL For a sample size of 30 UCL = LCL = b. What happens to...
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...
D Question 8 0.85 pts C&A wants to see if the accuracy of the prices that...
D Question 8 0.85 pts C&A wants to see if the accuracy of the prices that were entered into its database used for its cash registers is in control. C&A collects 5 weeks of data as shown below. Incorrect Price Entries The 3-sigma upper and lower control chart limits for this process would be OUCL-1.33: LCL 0.35 OUCL 10.35; LCL-0 UCL-4.2; LCL- UCL-133: LCL Next Previous 30 8 8 5
Refer to Table 56.1 - Factors for Computing Control Chart Limits (sigma) for this problem. Thirty-five...
Refer to Table 56.1 - Factors for Computing Control Chart Limits (sigma) for this problem. Thirty-five samples of size 7 each were taken from a fertilizer-bag-filling machine at Panos Kouvels Lifelong Lawn Lid. The results were: Overal mean = 54.75 lb.: Average range R 164 b. a) For the given sample size, the control limits for 3-sigma x chart are Upper Control Limit (UCL) - D. (round your response to three decimal places). Lower Control Limit (LCL)-1. (round your response...
Chapter 6 - Question 02 Homework. Unanswered The weights of large Nacho Cheese Doritos (sold to...
Chapter 6 - Question 02 Homework. Unanswered The weights of large Nacho Cheese Doritos (sold to Sam's Club) within a large production lot are sampled each hour. Managers want to set control limits that include 99.73% of the sample means (Z=3) and given is the population (process) standard deviation, which is 1. You are in charge of randomly selecting nine (n=9) boxes each hour, for twelve hours (k=12). Then find the overall mean and compute the control limits using an...
a) What are the lower and upper control limits for this chart if
these limits are chosen to be four standard deviations from
thetarget?
Upper Control Limit (UCL - subscript x) = _______ calories
(enter your response as an integer).
Lower Control Limit (LCL- subscript x) = ________calories
(enter your response as an integer).
b) What are the limits with three standard deviations from the
target?
The 3-sigma x overbarx chart control limitsare:
Upper Control Limit (UCL - subscript...
1st*variability is: in
control/out of control
2nd*no samples fall/one/two/more
3rd* in control/out of control
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five points in time during a manufacturing cycle. X Sample R 1 95.72 1.0 95.24 2 0.9 0.9 95.18 95.42 0.4 4 5 95.46 0.5 95.32 1.1 6 7 95.40 0.9 95.44 0.3 9 95.08 0.2 10 95.50 0.6 11 95.80 0.6 12...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five points in time during a manufacturing cycle. Sample x R 1 95.72 1.0 2 95.24 0.9 3 95.18 0.9 4 95.48 0.4 5 95.46 0.5 6 95.32 1.1 7 95.40 1.0 8 95.44 0.3 9 95.08 0.2 9 10 10 95.50 0.6 11 95.80 0.6 12 95.22 0.2 13 95.60 1.3 14 95.22 0.5 15 95.04...
Product filling weights are normally distributed with a mean of 365 grams and a standard deviation of 19 grams. a. Compute the chart upper control limit and lower control limit for this process if samples of size 10, 20 and 30 are used (to 2 decimals). Use Table 19.3. For samples of size 10 UCL =| LCL For a sample size of 20 UCL = LCL For a sample size of 30 UCL = LCL = b. What happens to...
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...
D Question 8 0.85 pts C&A wants to see if the accuracy of the prices that were entered into its database used for its cash registers is in control. C&A collects 5 weeks of data as shown below. Incorrect Price Entries The 3-sigma upper and lower control chart limits for this process would be OUCL-1.33: LCL 0.35 OUCL 10.35; LCL-0 UCL-4.2; LCL- UCL-133: LCL Next Previous 30 8 8 5
Refer to Table 56.1 - Factors for Computing Control Chart Limits (sigma) for this problem. Thirty-five samples of size 7 each were taken from a fertilizer-bag-filling machine at Panos Kouvels Lifelong Lawn Lid. The results were: Overal mean = 54.75 lb.: Average range R 164 b. a) For the given sample size, the control limits for 3-sigma x chart are Upper Control Limit (UCL) - D. (round your response to three decimal places). Lower Control Limit (LCL)-1. (round your response...
Chapter 6 - Question 02 Homework. Unanswered The weights of large Nacho Cheese Doritos (sold to Sam's Club) within a large production lot are sampled each hour. Managers want to set control limits that include 99.73% of the sample means (Z=3) and given is the population (process) standard deviation, which is 1. You are in charge of randomly selecting nine (n=9) boxes each hour, for twelve hours (k=12). Then find the overall mean and compute the control limits using an...
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