The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 8 years and a standard deviation of 1.5 years. Standard Normal Distribution Table a. What is the probability that a CleanFreek dishwasher will last longer than 12 years? P(X > 12)= b. What is the probability that a CleanFreek dishwasher will last fewer than 8 years? P(X < 8)= c. What length warranty should be established on the dishwashers so that no more than 1.6% of the units will need to be replaced under warranty? x= years Round to 2 decimal places.

The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 8 years and a standard deviation of 1.5 years. Standard Normal Distribution Table a. What is the probability that a CleanFreek dishwasher will last longer than 12 years? P(X > 12)= b. What is the probability that a CleanFreek dishwasher will last fewer than 8 years? P(X < 8)= c. What length warranty should be established on the dishwashers so that no more than 1.6% of the units will need to be replaced under warranty? x= years Round to 2 decimal places.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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