1Statistics: An IntroductionFifth Edition343Section 8: Statistical InferenceA. BackgroundWe make use of probability methods to make inferences (estimates) regarding the nature of population facts (parameters) using sample facts (statistics).In this section, we will introduce the tools that will enable us to make statistical inferences based on probability concepts.344Section 8: Statistical InferenceExample:What proportion of adults in US approve of job President is doing?Target Population (TP)– Population of interest. E.g., Adults in USExperimentally Accessible Population (EAP)–Population able to draw sample from. E.g., Adults in US with phones who are home between 6 and 9pm.
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