Answered: If Quickstart guarantees a full refund…

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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Question

Quickstart company makes 12 V car batteries after many years of product testing The company knows that the average life of Quickstart batteries normally distribute with a mean of 47.0 months and a standard deviation of 7.3 months. A) If Quickstart guarantees a full refund on any battery that fails were in the 36 month period after purchase what percentage of its batteries will the company expect to replace (round your answer to two decimal places) B) if Quickstart does not want to make refunds for more than 5% if it’s batteries under the full refund guarantee policy for how long should a company guarantee the batteries to the nearest month

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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