Loose Leaf Version For Elementary Statistics
Loose Leaf Version For Elementary Statistics
3rd Edition
ISBN: 9781260373523
Author: William Navidi Prof., Barry Monk Professor
Publisher: McGraw-Hill Education
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Chapter 11.1, Problem 8E

A test was made of H 0 : μ 1 = μ 2 versus H 1 : μ 1 μ 2 .

The sample means were x ¯ 1 = 10 and x ¯ 2 = 8 , the sample standard deviations were s 1 = 4 and s 2 = 7 , and the sample sizes were n 1 = 15 and n 2 = 27.

  1. How many degrees of freedom are there for the test statistic, using the simple method?
  2. Compute the value of the test statistic.
  3. Is H 0 rejected at the 0.05 level? Explain.

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Chapter 11 Solutions

Loose Leaf Version For Elementary Statistics

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