A mechanic sells a brand of automobile tire that has a life expectancy that is normally​ distributed, with a mean life of 28,000 miles and a standard deviation of 2800 miles. He wants to give a guarantee for free replacement of tires that​ don't wear well. How should he word his guarantee if he is willing to replace approximately​ 10% of the​ tires? Tires that wear out by ___ miles will be replaced free of charge.

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Q: anic sells a brand of automobile tire that has a life expectancy that is normally distributee cee…

A: Given Mean=36000 Standard deviations=2600 Z=-1.282

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Q: Tires that wear out bynothing miles will be replaced free of charge.

A: Solution:

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Q: n what range of money for their annual salary?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.