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In: Statistics and Probability

PRACTICE ANOTHER Suppose that a category of world class runners are known to run a marathon...

PRACTICE ANOTHER

Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 149 minutes with a standard deviation of 12 minutes. Consider 49 of the races.

Let X = the average of the 49 races.

Find the 70th percentile for the average of these 49 marathons. (Round your answer to two decimal places.)

Solutions

Expert Solution

Using Z-score we get 70th percentile is 155.288

Solution file is attached go through it

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orchestra answered 2 years ago
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