2. The personnel director of a manufacturing company wants to estimate theaverage mechanical aptitude (as measured by a certain test) of a large groupemployees and she wants this estimate to be in error by at most 2 withprobability 0.99. If it is presumed from experience that o=15 for this test, howlarge a sample is required?

Here, E = 2, σ=15, and p=0.99.

Answered: The personnel director of a…

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 a production line that makes resistors, 5 resistors are discarded per hour on averagedue to defects. What is the probability of discarding at least 25 resistors in any 4-hour time period? need the solution without the aid of statistical software, with full working. It is OK to use statistical tables in your solutions, as long as you indicate which table you have used and how you have used it.
2
Suppose that a random sample of size 25 is to be selected from a population with mean 46 and standard deviation 8. What is the approximate probability that X will be more than .5 away from the population mean?
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