What is the distribution of XX? XX ~ N(,) What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) 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 68.8 and 71.
What is the distribution of XX? XX ~ N(,) What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) 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 68.8 and 71.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Question
The average number of miles (in thousands) that a car's tire will
- What is the distribution of XX? XX ~ N(,)
- What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
- 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 68.8 and 71.
- For the 43 tires tested, find the probability that the average miles (in thousands) before need of replacement is between 68.8 and 71.
- For part d), is the assumption that the distribution is normal necessary? NoYes
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