Question
In: Statistics and Probability
A line of high-end tires produced by a large company has a wear-out life that can...
A line of high-end tires produced by a large company has a wear-out life that can be modeled using a normal distribution with a mean of 25,000 miles and a standard of 2,000 miles. Determine each of the following a- -The percentage of tires that can be expected to wear-out within +or- (plus or minus) 2,000 miles of the average (for example between 23,000 miles and 27,000) b- -The percentage of tires that can be expected to fail between 26,000 miles and 29,000 miles Note: the term percentage refers to a probability
Solutions
Expert Solution
a)
The following information has been provided:
We need to compute :
The corresponding z-values needed to be computed are:
Therefore, we get:
The following is obtained graphically:
b)
The following is obtained graphically:
Please do upvote if you are satisfied! Let me know in the comments if anything is not clear. I will reply ASAP!
orchestra answered 2 years agoRelated Solutions
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