Answered: For a sample of 40 items from a…

For a sample of 40 items from a population for which the standard deviation is σ = 7.4, the sample mean Is 28.4. At the 0.01 level of significance, test Ho : µ ≥ 30 versus H1: µ < 30.

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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Question

For a sample of 40 items from a population for which the standard deviation is σ = 7.4, the sample mean Is 28.4. At the 0.01 level of significance, test H_o : µ ≥ 30 versus H₁: µ < 30.

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