Chapter 8, Problem 3RE

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

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 a sample 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

**a.** Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with

**b.** Did this sample of females consume significantly fewer energy drinks than the overall population average? Use a one-tailed test with

**(a)**

To determine

**To find:** Whetherthe sample of males consumes significantly more energy drinks than the overall population average.

Explanation

**Given info:**

The summarized statistics are,

**Calculation:**

*The null and alternative hypotheses:*

*The null hypothesis:*

That is, the sample of male consume less energy drinks than the overall population average.

*The alternative hypothesis:*

That is, the sample of male consume significantly more energy drinks than the overall population average.

The level of significance is

*Test statistic:*

Thus, the test statistic is 3.00.

From standard normal table

**(b)**

To determine

**To find:** Whether the sample of female consumes significantly fewer energy drinks than the overall population average.

Sect-8.1 P-1LCSect-8.1 P-2LCSect-8.1 P-3LCSect-8.1 P-1LCASect-8.1 P-2LCASect-8.1 P-3LCASect-8.2 P-1LCSect-8.2 P-2LCSect-8.2 P-3LCSect-8.2 P-4LC

Sect-8.2 P-5LCSect-8.3 P-1LCSect-8.3 P-2LCSect-8.3 P-3LCSect-8.3 P-4LCSect-8.3 P-5LCSect-8.4 P-1LCSect-8.4 P-2LCSect-8.4 P-3LCSect-8.5 P-1LCSect-8.5 P-2LCSect-8.5 P-3LCSect-8.6 P-1LCSect-8.6 P-2LCSect-8.6 P-3LCSect-8.6 P-4LCCh-8 P-1PCh-8 P-2PCh-8 P-3PCh-8 P-4PCh-8 P-5PCh-8 P-6PCh-8 P-7PCh-8 P-8PCh-8 P-9PCh-8 P-10PCh-8 P-11PCh-8 P-12PCh-8 P-13PCh-8 P-14PCh-8 P-15PCh-8 P-16PCh-8 P-17PCh-8 P-18PCh-8 P-19PCh-8 P-20PCh-8 P-21PCh-8 P-1RECh-8 P-2RECh-8 P-3RE

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