Aebcs 1524- Tyre Manufacturer Found That The Sample Mean

A tyre manufacturer found that the sample mean tread life of 49 radial tyres tested was 52345 km with standard deviation 12943 km. Construct a 99% confidence interval estimate for the true mean tread life of all radial tyres manufactured and give the upper limit.

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AEBCS 1524- tyre manufacturer found that the sample mean

Question
A tyre manufacturer found that the sample mean tread life of 49 radial tyres tested was 52345 km with standard deviation 12943 km. Construct a 99% confidence interval estimate for the true mean tread life of all radial tyres manufactured and give the upper limit.

find the cost of your paper