Claim: 1 = 2 ; = 0.05. Assume 1 2 = 2
Question:
Claim: μ1 = μ2; α = 0.05. Assume σ12 = σ22.
Sample statistics: x̅1 = 228, s1 = 27, n1 = 20 and
x̅2 = 207, s2 = 25, n2 = 13
Test the claim about the difference between two population means μ1 and μ2 at the level of significance α. Assume the samples are random and independent, and the populations are normally distributed. If convenient, use technology.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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