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A manufacturer of light bulbs produces bulbs that last a mean of 950 hours with a standard deviation of 120 hours. What is the probability that the mean lifetime of a random sample of 10 of these bulbs is less than 900 hours? STEPS SOLUTION 1. Identify the given information. 2. Identify what is asked for.

A manufacturer of light bulbs produces bulbs that last a mean of 950 hours with a standard deviation of 120 hours. What is the probability that the mean lifetime of a random sample of 10 of these bulbs is less than 900 hours? STEPS SOLUTION 1. Identify the given information. 2. Identify what is asked for.

MATLAB: An Introduction with Applications
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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2. A manufacturer of light bulbs produces bulbs that last a mean of 950 hours with a standard deviation of 120 hours. What is the probability that the mean lifetime of a random sample of 10 of these bulbs is less than 900 hours? STEPS SOLUTION 1. Identify the given information. 2. Identify what is asked for. 3. Identify the formula to be used. 4. Solve the problem. 5. State the final answer.
Transcribed Image Text:2. A manufacturer of light bulbs produces bulbs that last a mean of 950 hours with a standard deviation of 120 hours. What is the probability that the mean lifetime of a random sample of 10 of these bulbs is less than 900 hours? STEPS SOLUTION 1. Identify the given information. 2. Identify what is asked for. 3. Identify the formula to be used. 4. Solve the problem. 5. State the final answer.
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