We have independent random samples from two populations (A , B). A: n = 34, X-bar = 16, s = 4 B: n = 43, X-bar = 12, s = 2 a) Find the 95% CI for μ1 −μ2 . Use df = 45, if needed. b) Is it plausible that μ1 = μ2? Explain.

We have independent random samples from two populations (A , B). A: n = 34, X-bar = 16, s = 4 B: n = 43, X-bar = 12, s = 2 a) Find the 95% CI for μ1 −μ2 . Use df = 45, if needed. b) Is it plausible that μ1 = μ2? Explain.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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Question

We have independent random samples from two
populations (A , B).
A: n = 34, X-bar = 16, s = 4
B: n = 43, X-bar = 12, s = 2
a) Find the 95% CI for μ1 −μ2 . Use df = 45,
if needed.
b) Is it plausible that μ1 = μ2? Explain.

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