Claim: 1 2 ; = 0.05. Population statistics: 1 = 14 and
Question:
Claim: μ1 ≠ μ2; α = 0.05.
Population statistics: σ1 = 14 and σ2 = 15
Sample statistics: x̅1 = 87, n1 = 410 and x̅2 = 85, n2 = 340
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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H 0 1 2 H a 1 2 claim z 0 196 z 0 196 Rejection r...View the full answer
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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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