Number of Facebook friends. An experiment was run to

Chapter , Problem 15.37

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Number of Facebook friends. An experiment was run to examine the relationship between the number of Facebook friends and the users perceived social attractiveness.15 A total of 134 undergraduate participants were randomly assigned to observe one of five Facebook profiles. Everything about the profile was the same except the number of friends, which appeared on the profile as 102, 302, 502, 702, or 902. After viewing the profile, each participant was asked to fill out a questionnaire on the physical and social attractiveness of the profile user. Each attractiveness score is an average of several seven-point questionnaire items, ranging from 1 (strongly disagree) to 7 (strongly agree). In Example 12.3 (page 648), we analyzed these data using a one-way ANOVA. Explain the setting for this problem. Include the number of groups to be compared, assumptions about independence, and the distribution of the distributions. F