CHAPTER 7 346 Hypothesis Testing with One Sample 7.1 Introduction to Hypothesis Testing 7.2 Hypothesis Testing for the Mean (s Known) 7.3 Hypothesis Testing for the Mean (s Unknown) Activity Case Study 7.4 Hypothesis Testing for Proportions Activity 7.5 Hypothesis Testing for Variance and Standard Deviation Uses and Abuses Real Statistics—Real Decisions Technology The Entertainment Software Rating Board (ESRB) assigns ratings to video games to indicate the appropriate ages for players.These ratings include E (everyone), E10+ (everyone 10+),T (teen), M (mature), and AO (adults only).
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