Calculate a 95% confidence interval for the mean endowment of all private colleges in the United States.
Calculate a 95% confidence interval for the mean endowment of all private colleges in the United States.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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) Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much of this money is invested in a fund called an endowment, and the college spends only the interest earned by the fund. A recent survey of eight private colleges in the United States revealed the following endowments (in millions of dollars): 60.2, 47.0, 235.1, 490.0, 122.6, 177.5, 95.4, and 220.0. Summary statistics yield x = 180.975 and s= 143.042. Calculate a 95% confidence interval for the
A) 180.975±124.673 B) 180.975±119.605 C) 180.975±116.621 D) 180.975±127.863
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