7. Forty adult males volunteered to participate in an experiment. Half of them are randomly assigned to take a caffeine supplement before working out, and the other half are assigned to take a placebo before completing the same workout. During the workout, heart rate monitors will be used to measure each participant’s heart rate. The study found that those who took a caffeine supplement had significantly higher average pulse rates during the workout. What conclusion can be drawn from the study?(A) Two experimental groups of 20 each is too small to conclude that the results are significant.(B) Those that took the caffeine supplement had a higher average heart rate during the workout, but it would not be correct to conclude that caffeine caused this to occur.(C) The caffeine supplements caused the heart rates to increase due to the placebo effect.(D) Caffeine supplements will, on average, raise the heart rates of all adult males during a workout similar to the one performed in the experiment.(E) Caffeine supplements will, on average, raise the heart rates of adult males similar to those in this study during a workout similar to the one performed in the experiment.

From the given information, it can be observed that the heart rates after taking caffeine or placebo…

Answered: Forty adult males volunteered to…

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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7. Forty adult males volunteered to participate in an experiment. Half of them are randomly assigned to take a caffeine supplement before working out, and the other half are assigned to take a placebo before completing the same workout. During the workout, heart rate monitors will be used to measure each participant’s heart rate. The study found that those who took a caffeine supplement had significantly higher average pulse rates during the workout. What conclusion can be drawn from the study?

(A) Two experimental groups of 20 each is too small to conclude that the results are significant.
(B) Those that took the caffeine supplement had a higher average heart rate during the workout, but it would not be correct to conclude that caffeine caused this to occur.
(C) The caffeine supplements caused the heart rates to increase due to the placebo effect.
(D) Caffeine supplements will, on average, raise the heart rates of all adult males during a workout similar to the one performed in the experiment.
(E) Caffeine supplements will, on average, raise the heart rates of adult males similar to those in this study during a workout similar to the one performed in the experiment.

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