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A researcher investigated how physical attraction influences the perception among others of a…


A researcher investigated how physical attraction influences the perception among others of a person's effectiveness with difficult tasks. The photographs of 24 people were shown to a focus group. The group was asked to classify the photos into three groups: very attractive, average, and very unattractive. Then, the group ranked the photographs according to their impression of how capable they were of solving difficult problems. Table 6.9 shows the classification and rankings of the people in the photos (1: most effective; 24: least effective)

A researcher investigated how physical attraction influences the perception among others of a...

Use a Kruskal-Wallis H-test with a = 0.05 to determine if one or more of the groups are significantly different. If a significant difference exists, use twotailed Mann-Whitney U-tests to identify which groups are significantly different. Use the Bonferroni procedure to limit the Type I error rate. Report your findings.