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In a crash test of 15 troopers, collision repair costs are found to have a distribution that is approximately normal, with a mean of $1800.

In a crash test of 15 troopers, collision repair costs are found to have a distribution that is approximately normal, with a mean of $1800. Assume the population standard deviation is $950. Construct a 99% confidence interval for the repair cost.

Group of answer choices

(1319,2281)

(1168, 2432)

(1212,2318)

(1068,2198)

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