Exhibit 12-4
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 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.
-Refer to Exhibit 12-4. The expected frequency for the Business College is
A)0.3
B)0.35
C)90
D)105

Question

Quizplus · Accepted Answer

To find the expected frequency for the Business College, we need to multiply the total sample size (300) by the proportion of students in the Business College under the old distribution (0.35):
Expected frequency for Business College = 300 * 0.35 = 105
Therefore, the answer is D)105.

Exhibit 12-4 In the Past, 35% of the Students at ABC University