Answered: The increasing annual cost (including…

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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The increasing annual cost (including tuition, room, board, book, and fees) to attend college has been widely discussed in many publications including Money magazine. A random sample of the cost of attending private and public colleges are presented in the DATAfile CollegeCosts. Data are in thousands of dollars.

a) Develop a 95% confidence interval of the difference between the mean annual cost of attending private and public colleges.

b) Test the hypothesis that the mean annual cost of attending a private college is greater than the mean average cost of attending a public college.

CollegeCosts.

Private	Public
52.8	20.3
43.2	22.0
45.0	28.2
33.3	15.6
44.0	24.1
30.6	28.5
45.8	22.8
37.8	25.8
50.5	18.5
42.0	25.6
	14.4
	21.8

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