it has been found that average dishwasher lasts a handful of year before needing repaired. O'Brien Dishwashers want to test a minimum sample of its dishwashers at alpha = 0.05. using a stdev = 318, find the minimum number of dishwashers needed to do this. They would like the error to be within 159. State your answer in the appropriate format.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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31 it has been found that average dishwasher lasts a handful of year
before needing repaired. O'Brien Dishwashers want to test a
minimum sample of its dishwashers at alpha = 0.05. using a stdev
= 318, find the minimum number of dishwashers needed to do
this. They would like the error to be within 159. State your answer
in the appropriate format.
%3D
Transcribed Image Text:31 it has been found that average dishwasher lasts a handful of year before needing repaired. O'Brien Dishwashers want to test a minimum sample of its dishwashers at alpha = 0.05. using a stdev = 318, find the minimum number of dishwashers needed to do this. They would like the error to be within 159. State your answer in the appropriate format. %3D
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