Please provide an
aswer and reference(s) to the question below from a classmate.
Thank you in advance!
Class,
I am having a problem
with the following problem:
A certain brand of
automobile tire has a mean life span of 39,000 miles and a standard
deviation of 2,250 miles. (Assume the life spans of the tires have
a bell-shaped distribution.)
For the life span of
34,000 miles, z-score is = 34,000 x 39,000 = -2.22
2,250
For the life span of...