Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose that a researcher selects a random sample of n=36 male undergraduates and s ample of n=25 females. On average, the males reported consuming M=2.45 drinks per month and females had an average of M=1.28. Assume that the overall level of consumption for college undergraduates averages μ=1.85 energy drinks per month, that that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ=1.2.Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with α =0.01.Did this sample of females consume significantly fewer energy drinks than the overall population average? Use a one-tailed test with α =0.01.

As the population standard deviation is known, one should use a z test. Answer 1. Write the null and…

Answered: Did this sample of males consume…

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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Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose that a researcher selects a random sample of n=36 male undergraduates and s ample of n=25 females. On average, the males reported consuming M=2.45 drinks per month and females had an average of M=1.28. Assume that the overall level of consumption for college undergraduates averages μ=1.85 energy drinks per month, that that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ=1.2.
1. Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with α =0.01.
2. Did this sample of females consume significantly fewer energy drinks than the overall population average? Use a one-tailed test with α =0.01.

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