One semester, an instructor taught the same computer course at two universities located in different cities. He
Question:
One semester, an instructor taught the same computer course at two universities located in different cities. He was able to give the same final at both locations. The student's scores provided the summary statistics.
(a) Obtain a point estimate of μ1 - μ2.
(b) Estimate the S.E. (x̅ - Y̅).
(c) Construct a 95% confidence interval for μ1 - μ2 .
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Related Book For 
Statistics Principles And Methods
ISBN: 9781119497110
8th Edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
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