##### I need help with an algebra problem

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The upper and lower control limits are usually set at:

 A. the mean. B. above the mean. C. ±3 standard deviations from the mean. D. ±2 standard deviations from the mean.
Dec 8th, 2015

Thank you for the opportunity to help you with your question!

Answer is C. In control charts, the upper and lower limits are usually set at  plus or minus 3 standard deviations from the mean.

Approximately 99.7% of all the data lie within three standard deviations of the mean (in both directions).

Please let me know if you need any clarification. I'm always happy to answer your questions.
Dec 8th, 2015

thanks much.. will send more here if you are available

Dec 8th, 2015

Sure.

Dec 8th, 2015

An inspector determines that 0.05% of a lot of 400 items are defective. The actual number of defective items is 6. The critical number is 4. This is an example of:

 A. faulty sampling. B. a type II error. C. producer's risk. D. consumer's risk.
The probability that a firm accepts a lot which is 20% defective using a sample size of 14 and an acceptance number of 3 is:

 A. 0.044. B. 0.956. C. 0.842. D. 0.698.
What is the process by which a company can insure that a quality product or service is being produced?

 A. SPC B. Pareto C. Fishbone D. Diagnostic chart
The technique that tallies numbers and types of defects is called:

 A. range charts. B. Pareto charts. C. control charts. D. fishbone diagram.
The cause-and-effect chart is an example of:

 A. range charts. B. Pareto charts. C. control charts. D. fishbone diagrams.

Dec 8th, 2015

A sampling plan states that if 20 incoming transistors are checked and 2 or less defects are found that the lot is accepted. If an incoming lot is 10 percent defective, what is the probability of accepting the lot of transistors?

 A. 0 B. 1 C. 0.037 D. 0.667
Cappelli Inc. designs and manufactures women's apparel using material from various mills. Their acceptance sampling plan states that 20 two-inch squares of the incoming material must be carefully checked. If 3 or less squares reveal imperfections, the lot is accepted. What is the probability that an incoming lot from Blufton Mills that contains 40 percent imperfect cloth will be accepted?

 A. 0 B. 0.239 C. 0.015 D. 0.0024

Dec 8th, 2015

thats it

Dec 8th, 2015

did you get them?

Dec 8th, 2015

I am sorry, I am a little busy, don't have time to work on other problems.

Dec 8th, 2015

ok

Dec 8th, 2015

hello, are you available now?

Dec 10th, 2015

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Dec 8th, 2015
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Dec 8th, 2015
Dec 6th, 2016
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