Hypothesis Tests - One tail test - Study Unit 2 Chapter 2...

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Study Unit 2, Chapter 2, Topic 1: Copyright ©2012 SIM UNIVERSITY. All rights reserved.1Hypothesis Tests:One-Sample – One Tail Test
OutlineCopyright ©2012 SIM UNIVERSITY. All rights reserved.2Conduct a one-tail test of hypothesis about a population mean when population standard deviation is known.Distinguish between a one-tailed and a two-tailed hypothesis test. Conduct a one-tail test of hypothesis about a population mean when population standard deviation is unknown.
Testing for a Population Mean with aKnown Population Standard Deviation- ExampleThe Internal Revenue Service (IRS) is interested in estimating the mean amount of money spent on outside tax service by income tax filers filing as single on their individual form. The mean amount of money spent on outside tax service follows a normal distribution with a mean of $90 and the population standard deviation is assumed to be $30.79.The director at IRS has implemented a series of initiatives to reduce the paper work required, hoping that this could translate

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