Exhibit 12-6
the Following Shows the Number of Individuals in a Sample

Essay

Exhibit 12-6
The following shows the number of individuals in a sample of 300 who indicated they support the new tax proposal.
We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed.
-Last school year, in the school of Business Administration, 30% were Accounting majors, 24% Management majors, 26% Marketing majors, and 20% Economics majors. A sample of 300 students taken from this year's students of the school showed the following number of students in each major:
Has there been any significant change in the number of students in each major between the last school year and this school year? Use $\alpha$ = 0.05.