Question

In the past, 35% of the students at ABC University were in the Business College, 35% of the students were in the Liberal Arts College, and 30% of the students were in the Education College. To see whether or not the proportions have changed, a sample of 300 students from the university was taken. Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College. The expected frequency for the Business College is

Answer 1

Explanation:

Given that in the past, 35% of the students at ABC University were in the Business College, 35% of the students were in the Liberal Arts College, and 30% of the students were in the Education College.

Table is prepared as follows

Bus coll. Lib Arts coll Educ. coll Total

Observed 90 120 90 300

Expected p.c. 35 35 30 100

Expected number 105 105 90 300

Percent*300/100

Hence expected frequency for business college = 105