Earlier in the chapter, we introduced the chi-square test of independence with a study examining the relationship between personality and color preference.

The following table shows the frequency distribution for a group of n 5 200 students who were classified in terms of personality (introvert, extrovert) and in terms of color preference (red, yellow, green, or blue). Do the data indicate a significant relationship between the two variables? Test with a 5 .05.

Red Yellow Green Blue Introvert 10 3 15 22 50 Extrovert 90 17 25 18 150 100 20 40 40 n 5 200