Xsort method statistics5/11/2023 Genetics: The Genetics & IVF Institute claims that its XSORT method allows couples to increase the probability of having a baby girl.īusiness: A newspaper cites a survey of 1631 subjects and claims that a majority have heard of Kindle as an e-book reader. Main Objective The main objective of this chapter is to develop the ability to conduct hypothesis tests for claims made about a population proportion p, a population mean μ, or a population standard deviation σ.Įxamples of Hypotheses that can be Tested ![]() In Chapter 7 we presented methods for estimating a population parameter with a confidence interval, and in this chapter we present the method of hypothesis testing. The two main activities of inferential statistics are using sample data to (1) estimate a population parameter (such as estimating a population parameter with a confidence interval), and (2) test a hypothesis or claim about a population parameter. Methods of inferential statistics use sample data to make an inference or conclusion about a population. ![]() Review In Chapters 2 and 3 we used descriptive statistics when we summarized data using tools such as graphs, and statistics such as the mean and standard deviation. Lecture Slides Elementary Statistics Twelfth Edition and the Triola Statistics SeriesĬopyright © 2014, 2012, 2010 Pearson Education, Inc.Ĭhapter 8 Hypothesis Testing 8-1 Review and Preview 8-2 Basics of Hypothesis Testing 8-3 Testing a Claim about a Proportion 8-4 Testing a Claim About a Mean 8-5 Testing a Claim About a Standard Deviation or Variance
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