问题12Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much of this money is put into a fund called an endowment, and the college spends only the interest earned by the fund. A recent survey of 8 private colleges inthe United States revealed the following endowments (in millions of dollars): 60.2. 47.0. 2351. 490.0, 122.6. 1775. 95.4. and 220.0. Summary statistics yield X_bar = 180.975 and S = 143.042. Calculate a 95% confidence interval for the mean endowment of all the private colleges in theUnited States assuming a normal distribution for the endowments.O a) $180.9752 $94.066O b) $180.975: $99.123O c) $180.9752 $116.621O d) $180.975: $119.586

Sample mean x̄=180.975, S=143.042=sample standard deviations, level of significance ɑ=0.05.

Answered: 问题12 Private colleges and universities…

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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