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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Earlier in this chapter (p. 67), we mentioned a research study demonstrating that alcohol consumption increases attractiveness ratings for members of the opposite sex (Jones. Jones, Thomas. & Piper, 2003). In the actual study, college-age participants were recruited from bars and restaurants near campus and asked to participate in a “market research" study. During the introductory conversation, they were asked to report their alcohol consumption for the day and were told that moderate consumption would not prevent them from taking part in the study. Participants were then shown a series of photographs of male and female faces and asked to rate the attractiveness of each face on a 1-7 stale. The following data duplicate the general pattern of results obtained in the study. The two sets of scores are attractiveness ratings tor one female obtained from two groups of males: those who had no alcohol and those with moderate alcohol consumption. Calculate the mean for each group. Docs it appear from these data that alcohol has an effect on judgments of attractiveness?

Croup J No Alcohol Croup 2 Moderate Alcohol
3 4 5 1 2 53524
42 344 6 5 6 5 4
5 6 3 4 3 7 5 65 6

To determine

To Find: The mean for each group given in the question.

To check: Whether it appears from these data that alcohol has an effect on judgments of attractiveness.

Explanation

Given info:

The two-groups each of size 15 is provided in the question.

Calculations:

Software procedure:

Step-by-step procedure to obtain the X for both the groups using the SPSS software:

  • Go to Variable View> Enter the name of the variable as group1, and group2
  • Go to Data View>Enter the values of group1, and group2
  • Choose Analyze > Descriptive Statistics> choose Descriptive.
  • Select group1, group2 and move it under variable(s)> Choose Options> Select Sum.
  • Choose Continue> choose OK.

Output using the SPSS software is given below:

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