Transcription of CHAPTER Hypothesis Testing with One Sample
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CHAPTER Hypothesis Testing with One Sample
CHAPTER 7346 Hypothesis Testing with One to Hypothesis Testing for the Mean (s Known) Testing for the Mean (s Unknown)ActivityCase Testing for Testing for Variance and Standard DeviationUses and AbusesReal Statistics Real DecisionsTechnologyThe Entertainment Software Rating Board (ESRB) assigns ratings to video games to indicate the appropriate ages for players. These ratings include EC (early childhood), E (everyone), E10+ (everyone 10+), T (teen), M (mature), and AO (adults only).Copyright Pearson. All Rights CHAPTER . NOT FOR DISTRIBUTION. 347 Where You re GoingIn this CHAPTER , you will continue your study of inferential statistics. But now, instead of making an estimate about a population parameter, you will learn how to test a claim about a instance, suppose that you work for Pew Research Center and are asked to test a claim that the proportion of adults who agree that people who play violent video games are more likely to be violent themselves is p= To test the claim, you take a random Sample of n=2001 adults and find that
5.5 230 ≈ 1. In the figure below, notice that the sample mean of . x = 47 miles per gallon is highly unlikely—it is about 3 standard errors . 1. z. ≈ -2.992 from the claimed mean! Using the techniques you studied in Chapter 5, you can determine that if the advertisement is true, then the probability of obtaining a sample mean of 47 or ...
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