Question: In the paper Drink and Be Merry Gender Life Satisfaction

In the paper, "Drink and Be Merry? Gender, Life Satisfaction, and Alcohol Consumption Among College Students" (Psychology of Addictive Behaviors, Vol. 19, Issue 2, pp. 184-191), J. Murphy et al. examined the impact of alcohol use and alcohol-related problems on several domains of life satisfaction (LS) in a sample of 353 college students. All LS items were rated on a 7-point Likert scale that ranged from 1 (strongly disagree) to 7 (strongly agree). On the WeissStats CD you will find data for dating satisfaction, based on the results of the study.
Use the technology of your choice to do the following.
a. Obtain normal probability plots, boxplots, and the standard deviations for the two samples.
b. Based on your results from part (a), which are preferable here, pooled or nonpooled t-procedures? Explain your reasoning.
c. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean dating satisfaction of male and female college students?
d. Determine a 95% confidence interval for the difference between mean dating satisfaction of male and female college students.
e. Are your procedures in parts (c) and (d) justified? Explain your answer.

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