Last school year, the student body of a local university consisted of 20% freshmen, 21% sophomores, 29% juniors, and 30% seniors. A random sample of 300 students taken from this year's student body showed the following number of students in each class.Freshmen84Sophomores65Juniors86Seniors65We are interested in determining whether there has been a significant change in the distribution of class between the last school year and this school year.If the distribution is the same as the previous year, the expected number of freshmen is _____. a. 84 b. 87 c. 60 d. 20

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Last school year, the student body of a local university consisted of 20% freshmen, 21% sophomores, 29% juniors, and 30% seniors. A random sample of 300 students taken from this year's student body showed the following number of students in each class.

Freshmen	84
Sophomores	65
Juniors	86
Seniors	65

We are interested in determining whether there has been a significant change in the distribution of class between the last school year and this school year.

If the distribution is the same as the previous year, the expected number of freshmen is _____.

a. 84

b. 87

c. 60

d. 20

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