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Round your answer to one decimal place unless otherwise indicated. A ...

Question 1.

Solve the problem. Round your answer to one decimal place unless otherwise indicated.

When

runners were randomly selected and tested, a mean resting heart rate of

was obtained. Based on this sample statistic, what is the best estimate for the mean resting heart rate for all long-distance runners?

▸ 68.3 beats per minute

▸ 66.7 beats per minute

▸ 71.8 beats per minute

▸ 70.0 beats per minute

Question 2.

Solve the problem. Round your answer to one decimal place unless otherwise indicated.

A long-distance phone company wishes to estimate the mean duration of long-distance calls originating in California. A random sample of 15 long-distance calls originating in California yields the following call durations, in minutes.

Use the data to obtain an estimate of the mean call duration for all long-distance calls originating in California.

▸ 14.9 minutes

▸ 14.6 minutes

▸ 14.4 minutes

▸ 15.2 minutes

Textbook

Statistical Reasoning for Everyday Life

Edition: 5^th

Authors: Bennett, Briggs, Triola

Read 110 times

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