23. A quality control engineer is considering the optimal design of an X chart. Basedon his experience with the production process, there is a probability of .03 thatthe process shifts from an in-control to an out-of-control state in any period.When the process shifts out of control, it can be attributed to a single assignablecause; the magnitude of the shift is 2ơ. Samples of n items are made hourly,and each sampling costs $0.50 per unit. The cost of searching for the assignablecause is $25, and the cost of operating the process in an out-of-control state is$300 per hour.a. Determine the hourly cost of operating the system when n = 6 and k = 2.5.b. Estimate the optimal value of k for the case n = 6. If you are doing the calcu-lations by hand, use k = 0.5, 1, 1.5, 2, 2.5, and 3.0. If you are using a computer,use k = 0.1, 0.2, . , 2.9, 3.0.c. Determine the optimal control chart design that minimizes average annual....costs.

Given: A quality control engineer is considering the optimal design of an X chart. Based on his…

Answered: 23. A quality control engineer is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In making the decision to return to school for an MBA, prospective students desire to know the time it will take to recoup their investment (forgone wages plus tuition and other direct costs). The time it will take to recoup their investment is normally distributed. You are in charge of estimating this time for a brochure advertising an MBA program at UCLA. You randomly sample 20 past UCLA MBA students and find that the sample average is 3.61 years with a standard deviation of 0.63 years. An 80% confidence interval for the mean time it takes UCLA MBA students to recoup their educational investment is Q (3.25, 3.97). (3.42, 3.80). (3.32, 3.90). (3.37, 3.85). not determinable with the information given. JA W 国 P plakatdalalal 7
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#2...Can you write out answer please n thank u
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A retail chain plans to sell bottles of a special holiday drink this season. The bottles are typically stocked one month in advance and sold before the holiday for full price. After the holiday, the leftover bottles would be marked down to get sold. For each bottle, the item cost is $3.85, the full selling price is $11.99, and the marked down price is $0.98. Historically, demand is normally distributed with a mean of 1.28 million bottles and a standard deviation of 0.04 million bottles. You would need to show equations, steps, and the final results with units for full credits. Answers are in millions using 5 decimals, e.g. 1.76384 million bottles. You should not round up the numbers! For simplicity, all taxes and other costs are not considered. All parts below are based on the optimal quantity decision found in part (a). (a) To maximize expected profit, how many bottles should the retailer carry this year? (b) What are the expected inventory and the corresponding expected sales? (c)…
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