1. Psychology majors at a local college select one senior capstone course out of three options:Senior Thesis, Senior Internship, or Senior Seminar. A professor is trying to determine if there have been significant changes in students' preferences for courses in recent years.Over the past two years, 20% of students enrolled in Senior Thesis, 30% enrolled in Senior Internship, and 50% enrolled in Senior Seminar. A sample of n = 200 psychology students from the current academic year produced the following enrollment distribution:

Thesis	Internship	Seminar
40 students	70 students	90 students

1. Do the data indicate a significant change in enrollment? Test with alpha = .05.
2. Calculate the effect size, .

2. A researcher asked students to evaluate three new website layout designs. The distribution of preference is as follows:

	Design 1	Design 2	Design 3
	38	27	25	N = 90

1. Do the data indicate a preference for one design over the others? Test with alpha = .05.
2. Calculate the effect size, .