Al-Jareer book store uses 2-week periodic review period for its books inventory. For a particular book, theweekly demand during the 2-week review period is assumed to be normally distributed with a mean of 20units (books) and the standard deviation of 5 units. Whereas, during the lead time period of 4 days, thedemand also behaves normally with mean 5 unit and a standard deviation of 3 units respectively. What isthe expected (mean) demand and standard deviation of the demand during the review period plus the leadtime? Round to 3-decimal placesO a.Mean =42, Standard deviation= 7.788O b. Mean =50, Standard deviation= 6.681O c. Mean =40, Standard deviation= 7.812O d. Mean =45, Standard deviation= 7.681O e. None is correct

We have, Let, X- be the weekly demand during the 2-week review period Given: Let, Y-be the lead…

Answered: Al-Jareer book store uses 2-week…

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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When you have significant results in data analysis, it is not necessary to report all relevant means and standard deviations. True or false
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MARGI sells different types of wine. Customers place orders to the most popular "Summer Wine" at a relatively constant rate. The store buys this wine from WSCO that used to require lead-time of 1.5 weeks. Recently WSCO informed MARGI that its lead-time is increasing by K weeks. MARGI who runs an EOQ policy with cycle service level, realized that because of this increase, its current lead-time standard deviation of the demand is going to double. 1. What would the lead-time mean demand be? Twice as large as the current mean demand. b. Stay the same. c. Larger but more than two times. d. Not enough information to answer. a. 2. Calculate the value of 'K', and show your work.
A cell phone manufacturer has hired you to estimate the population mean of the battery lifetimes for all phones of their latest model. You decide to measure battery lifetime by recording the time it takes for the battery charge to run out while a tester is streaming videos on the phones continuously. Then you select a random sample of 45 cell phones of the manufacturer's latest model and record their battery lifetimes. Assume that the population standard deviation of the battery lifetimes for that cell phone model (using your method of measurement) is 2.42 hours. Based on your sample, follow the steps below to construct a 95% confidence interval for the population mean of the battery lifetimes for all phones of the manufacturer's latest model. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from your random sample of 45 phones of the manufacturer's latest model. Take Sample Sample size: 0 Number of phones Point estimate: 0 45 Sample mean…
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