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aliya0001 [1]
3 years ago
7

A marathon race is 26.2 miles long Lacey ran a marathon in 3.6 hours on average how many miles did you run per hour round to the

nearest 10th
Mathematics
1 answer:
maks197457 [2]3 years ago
3 0

Answer:

7.28 mph

Step-by-step explanation:

Lacey ran a 26.2-mile-long marathon in 3.6 hours. That means the speed of Macey is:

26.2 \div 3.6 = 7.28 \: mph

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Using the t-distribution, it is found that the p-value of the test is 0.007.

At the null hypothesis, it is <u>tested if the mean lifetime is not greater than 220,000 miles</u>, that is:

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For this problem:

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A similar problem is given at brainly.com/question/13873630

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