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Veronika [31]
3 years ago
7

A recent study reported the mean body mass index (BMI) for adults in the United States was 26.8. A researcher believes the mean

BMI of marathon runners is less than 26.8. A random sample of 35 marathon runners had a mean BMI of 22.7 with a standard deviation of 3.1. The researcher will conduct a one-sample t-test for a population mean. Have the conditions for inference been met
Mathematics
2 answers:
Korolek [52]3 years ago
7 0

No, because marathon runners are not a representative sample of all adults in the United States.

Svetllana [295]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

We are told its random

It is aproximately Normal because the sample size is greater than 30, (35), and we have a mean and a SD.

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Inequalities

Chua pays a monthly fee of $25 for his phone service, plus $0.05 per minute of use.

Let M = number of minutes Chua uses the phone service.

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1 year ago
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Angelina_Jolie [31]

40(1.25-t) is missing from the table

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How to solve such time related questions?

The key concept for solving such questions is the relationship between speed, distance and time.

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As a result, 40(1.25-t) is the right response.

Learn more about time related questions :

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