Conduct a multiple comparison of means by Tukey’s method to determine exactly where the significant differences occur in Problem 29.

Data From Problem 29

Studies have found that people find symmetrical faces more attractive than faces that are  not symmetrical. To test this theory, a psychiatrist selected a random sample of people and  showed them pictures of three different faces: a face that is perfectly symmetrical, a face that is slightly asymmetrical, and a face that is highly asymmetrical. She then asked them  to rate the three faces in terms of their attractiveness on a scale from 1 to 7, with 7 being  the most attractive. Test the null hypothesis that attractiveness does not differ with facial  symmetry.

Transcribed Image Text:

Symmetrical 7 6 7 5 6 6 Slightly Highly Asymmetrical Asymmetrical 2 5 4 5245 231122