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Assume that the best buy store has a policy of ordering cellphones from motorola in lots of 500. weekly demand for motorola cellphones at the store is normally distributed, with a mean of 300 and standard deviation of 200. Motorola takes two weeks to supply an order. if the store manager is targeting a fill rate of 99%, what safety inventory should the store carry? What should its ROP be?
Determine the 95% confidence interval for the population mean, based on the sample mean.
Suppose the population is normally distributed they make a decision to do a hypothesis test.
You are the production manager of a company. Parachutes are woven in your factory using a synthetic fiber purchased from one of four different suppliers. The most important outcome for parachutes is strength of the fabric.
Thirty-two samples of 8 items each were collected from a process. The average sample mean is 12 and the average range is 0.10. The upper and lower control limits, respectively, for an:
ABC Corporation has been using statistical process control for several months.
Find a 99% confidence interval for the population mean number of weekly miles.
Category of decision rule which contains maximax decision rule is?
Find out the critical value for the given degrees of freedom of the F-test also the lower-tailed critical value of F test for the similar level of significance
What is the probability all three of the selected homes have a security system?
Illustrate is the range of values for a coefficient of correlation. Illustrate degree of relationship do values of the correlation coefficient (r)with magnitudes close to 1.00 indicate.
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?
In addition, record the values for the UCL, center line, and LCL. Also, record any points that are out of control. Use a z-value of three.
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