Question

The inspection unit of a manufacturing process is one unit of product. Suppose 20 nonconformities were...

The inspection unit of a manufacturing process is one unit of product. Suppose 20 nonconformities were identified in inspecting 41 units and a control chart is to be set up for this manufacturing process. What are the three-sigma control limits and ?-risk for this control chart? What is the ?-risk and ARL if the average number of nonconformities per unit is two?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The inspection unit of the manufacturing process is one unit of product. Suppose 20 nonconformities were...
The inspection unit of the manufacturing process is one unit of product. Suppose 20 nonconformities were identified in inspecting 41 units and a control chart is to be set up for this manufacturing process. What are the three-sigma control limits and ?-risk for this control chart? What is the ?-risk and ARL if the average number of nonconformities per unit is two?
A control chart for fraction nonconforming indicates that the current process average is 0.03. The sample...
A control chart for fraction nonconforming indicates that the current process average is 0.03. The sample size is constant at 200 units. a) Find the three-sigma control limits for the control chart. b) What is the probability that a shift in the process average to 0.08 will be detected on the first subsequent sample? (Hint: use normal approximation) c) What is the probability that this shift will be detected on the second sample taken after the shift?
A process is controlled with a fraction nonconforming control chart with three-sigma limits, ? = 100....
A process is controlled with a fraction nonconforming control chart with three-sigma limits, ? = 100. Suppose that the center line = 0.10. (a) Suppose that the percentage of conforming units in sample ? is ?? . What distribution should ?? follow? Use a Normal distribution to approximate the distribution of ?? . Specify the mean and the variance of this Normal distribution. (b) Find the upper and lower control limit for this fraction nonconforming chart. (c) Find the equivalent...
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 0.7 4 95.42 0.4 5 95.46 0.5 6 95.32 1.1 7 95.40 0.9 8 95.44 0.3 9 95.08 0.2 10 95.50 0.6 11 95.80 0.6 12 95.22 0.2 13 95.58 1.3 14 95.22 0.6 15 95.04 0.8 16...
Aspen Plastics produces plastic bottles to customer order. To monitor the process, statistical process control charts...
Aspen Plastics produces plastic bottles to customer order. To monitor the process, statistical process control charts are used. The central line of the chart for the sample means is set at 8.50 and the range at 0.31in. Assume that the sample size is 6 and the specification for the bottle neck diameter is 8.50 ± 0.25. a. Calculate the control limits for the mean and range charts. (3 points) b. Suppose that the standard deviation of the process distribution is...
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:                                                                                                                                                  Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Mean 19...
Q 1. Part 1. Suppose that over the last 20​ weeks, a law firm had a...
Q 1. Part 1. Suppose that over the last 20​ weeks, a law firm had a total of 1045 consultation​ calls, and that 126 of them did not get an appointment for an initial consult within 24 hours. What is​ (are) the appropriate control​ chart(s) to use for these​ data? A. ARL chart B. c chart C. Pareto chart D. p chart Q1. Part 2. A manufacturer of solid wood cabinetry requires that its lumber has moisture content​ (MC) between​...
Mello Manufacturing Company is a diversified manufacturer that manufactures three products (Alpha, Beta, and Omega) in...
Mello Manufacturing Company is a diversified manufacturer that manufactures three products (Alpha, Beta, and Omega) in a continuous production process. Senior management has asked the controller to conduct an activity-based costing study. The controller identified the amount of factory overhead required by the critical activities of the organization as follows: 1 Activity Activity Cost Pool 2 Production $278,280.00 3 Setup 82,677.00 4 Material handling 11,110.00 5 Inspection 54,918.00 6 Product engineering 144,361.00 7 Total $571,346.00 The activity bases identified for...
The design diameter of a cylinder is 60 mm (millimeters). A manufacturing process can make them...
The design diameter of a cylinder is 60 mm (millimeters). A manufacturing process can make them according to a Normal distribution with mean 60 and standard deviation 0.1 When the process is in control, if samples of size 12 were taken, the sample means will have a standard deviation of _____ mm (provide three decimal places) The design diameter of a cylinder is 60 mm (millimeters). A manufacturing process can make them according to a Normal distribution with mean 60...
Chineke Ltd manufactures three joint products and one by-product (Dee) in a single process. The following...
Chineke Ltd manufactures three joint products and one by-product (Dee) in a single process. The following are the actual results for March 2019: Ayee Units Bee Units Cee Units Dee Units Production at 100% capacity 20 000 25 000 10 000 2 000 All joint products can be processed further into a superior product namely: Super Aye, Super Bee and Super Cee. Due to strict quality control at the end of the production process, a rejection of 10% of the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT