An increase in walking has been shown to contribute to a healthier lifestyle. A sedentary American takes an average of 5000 steps per day (and 65% of Americans are overweight). A group of health-conscious employees of a large health care system volunteered to wear pedometers for a month to record their steps. It was found that a random sample of 40 walkers took an average of 5430 steps per day, and the population standard deviation is 600 steps. At a = 0.05 can it be concluded that they walked more than the mean number of 5000 steps per day?
An increase in walking has been shown to contribute to a healthier lifestyle. A sedentary American takes an average of 5000 steps per day (and 65% of Americans are overweight). A group of health-conscious employees of a large health care system volunteered to wear pedometers for a month to record their steps. It was found that a random sample of 40 walkers took an average of 5430 steps per day, and the population standard deviation is 600 steps. At a = 0.05 can it be concluded that they walked more than the mean number of 5000 steps per day?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Answer a to e based on the question number 4
Transcribed Image Text:4. An increase in walking has been shown to contribute to a healthier lifestyle. A
sedentary American takes an average of 5000 steps per day (and 65% of
Americans are overweight). A group of health-conscious employees of a large
health care system volunteered to wear pedometers for a month to record their
steps. It was found that a random sample of 40 walkers took an average of 5430
steps per day, and the population standard deviation is 600 steps. At a = 0.05 can
it be concluded that they walked more than the mean number of 5000 steps per
day?
Transcribed Image Text:For Problems 3 through 5, perform each of the following steps.
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
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