Suppose that a tire manufacturer believes that the lifetimes of its tires follow a normal distribution with mean 48,000 miles and standard deviation 5,000 miles.
-Determine the $z$-score corresponding to 55,000 miles.

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The Answer of Suppose that a tire manufacturer believes that the lifetimes of its tires follow a normal distribution with mean 48,000 miles and standard deviation 5,000 miles.
-Determine the $z$-score corresponding to 55,000 miles.

Suppose That a Tire Manufacturer Believes That the Lifetimes of Its