In an effort to check the quality of their cell phones a, Ask an Expert

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In an effort to check the quality of their cell phones, a manufacturing manager decides to take a random sample of 10 cell phones from yesterday's production run, which produced cell phones with serial numbers ranging (according to when they were produced) from 43005000 to 43005999. If each of the 1000 phones is equally likely to be selected:

a) What distribution would they use to model the selection?

b) What is the probability that a randomly selected cell phone will be one of the last 100 to be produced?

c) What is the probability that the first cell phone selected is either from the last 200 to be produced or from the first 50 to be produced?

For Exercises 21-28, use the 68-95-99.7 Rule to approximate the probabilities rather than using technology to find the values more precisely. Answers given for probabilities or percentages from Exercise 29 and on assume that a calculator or software has been used. Answers found from using Z-tables may vary slightly.

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Accounting Basics, Accounting

Category:- Accounting Basics
Reference No.:- M91724384

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