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Company XYZ knows that replacement times for the coffee makers it produces are normally distributed with a mean of 4.7 years and a standard deviation of 1.7 years. Let X be the replacement time of a randomly selected coffee maker. a. What is the distribution of X? X - N Please show the following answers to 4 decimal places. b. If a coffee maker is randomly chosen, find the probability that it will be replaced in at least 3.2 years. c. If a coffee maker is randomly chosen, find the probability that it will be replaced between 2.8 and 6.2 years. 4.7 1.7 Please show the following answer to 1 decimal place. d. If the company wants to provide a warranty so that only 7% of the coffee makers will be replaced before the warranty expires, what is the time length of the warranty? years

Company XYZ knows that replacement times for the coffee makers it produces are normally distributed with a mean of 4.7 years and a standard deviation of 1.7 years. Let X be the replacement time of a randomly selected coffee maker. a. What is the distribution of X? X - N Please show the following answers to 4 decimal places. b. If a coffee maker is randomly chosen, find the probability that it will be replaced in at least 3.2 years. c. If a coffee maker is randomly chosen, find the probability that it will be replaced between 2.8 and 6.2 years. 4.7 1.7 Please show the following answer to 1 decimal place. d. If the company wants to provide a warranty so that only 7% of the coffee makers will be replaced before the warranty expires, what is the time length of the warranty? years

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Company XYZ knows that replacement times for the coffee makers it produces are normally distributed with a mean of 4.7 years and a standard deviation of 1.7 years. Let X be the replacement time of a randomly selected coffee maker. a. What is the distribution of X? X - N✓ Please show the following answers to 4 decimal places. b. If a coffee maker is randomly chosen, find the probability that it will be replaced in at least 3.2 years. c. If a coffee maker is randomly chosen, find the probability that it will be replaced between 2.8 and 6.2 years. 4.7 1.7 Please show the following answer to decimal place. d. If the company wants to provide a warranty so that only 7% of the coffee makers will be replaced before the warranty expires, what is the time length of the warranty? years
Transcribed Image Text:Company XYZ knows that replacement times for the coffee makers it produces are normally distributed with a mean of 4.7 years and a standard deviation of 1.7 years. Let X be the replacement time of a randomly selected coffee maker. a. What is the distribution of X? X - N✓ Please show the following answers to 4 decimal places. b. If a coffee maker is randomly chosen, find the probability that it will be replaced in at least 3.2 years. c. If a coffee maker is randomly chosen, find the probability that it will be replaced between 2.8 and 6.2 years. 4.7 1.7 Please show the following answer to decimal place. d. If the company wants to provide a warranty so that only 7% of the coffee makers will be replaced before the warranty expires, what is the time length of the warranty? years
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