Homework Help is Here – Start Your Trial Now!
Math
Probability
Ble and assume a normal distribution. a. What is the distribution of X? X N( b. What is the distribution of ? - N( c. If a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 67 and 70.

Ble and assume a normal distribution. a. What is the distribution of X? X N( b. What is the distribution of ? - N( c. If a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 67 and 70.

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
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
The average number of miles (in thousands) that a car's tire will function before needing replacement is 73 and the standard deviation is 20. Suppose that 17 randomly selected tires are tested. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X N( b. What is the distribution of ? - N( c. If a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 67 and 70. d. For the 17 tires tested, find the probability that the average miles (in thousands) before need of replacement is between 67 and 70. e. For part d), is the assumption that the distribution is normal necessary? O Yes No Question Help: Written Example Message instructor Submit Question Jump to Answer 13 44.417 APR tv 17
Transcribed Image Text:The average number of miles (in thousands) that a car's tire will function before needing replacement is 73 and the standard deviation is 20. Suppose that 17 randomly selected tires are tested. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X N( b. What is the distribution of ? - N( c. If a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 67 and 70. d. For the 17 tires tested, find the probability that the average miles (in thousands) before need of replacement is between 67 and 70. e. For part d), is the assumption that the distribution is normal necessary? O Yes No Question Help: Written Example Message instructor Submit Question Jump to Answer 13 44.417 APR tv 17
Expert Solution
steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS