7) From a list of faculty sizes for American 4-year colleges and universities, it is desired to estimate the average faculty size for an academic year. Public schools are typically larger compared to private ones, so stratification is appropriate. The type of school (public vs private) is easily obtained, whereas faculty data are more difficult to capture. A sample of 141 schools obtained the following: Private Public Total n, 84 n=57 n'=141 Use the information given there to estimate the average faculty size for American colleges in this study. Construct an estimated variance for your estimate of the average and interpret. Public, n₂-12 Faculty Private, n₁ = 11 Faculty 122 452 88 131 65 996 55 50 79 106 79 326 506 75 371 32 108 428 298 110 128 280
7) From a list of faculty sizes for American 4-year colleges and universities, it is desired to estimate the average faculty size for an academic year. Public schools are typically larger compared to private ones, so stratification is appropriate. The type of school (public vs private) is easily obtained, whereas faculty data are more difficult to capture. A sample of 141 schools obtained the following: Private Public Total n, 84 n=57 n'=141 Use the information given there to estimate the average faculty size for American colleges in this study. Construct an estimated variance for your estimate of the average and interpret. Public, n₂-12 Faculty Private, n₁ = 11 Faculty 122 452 88 131 65 996 55 50 79 106 79 326 506 75 371 32 108 428 298 110 128 280
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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