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HypTesting

# HypTesting - Hypothesis Testing Logic of Hypothesis Testing...

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Hypothesis Testing Hypothesis Testing

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Logic of Hypothesis Testing Logic of Hypothesis Testing State a hypothesis about a population parameter Obtain a sample from the population &  compute sample statistics from the data Compare the sample data with  predictions made from the hypothesis Begin with the assumption that the  hypothesis is unreasonable Then we try to reject this hypothesis
Testing Hypotheses with  Testing Hypotheses with  Z-test statistic Z-test statistic Use a z-test when: You want to compare a single sample mean  ( M ) to a population mean ( µ AND The population mean ( µ ) and standard  deviation ( ) are known σ

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Testing Hypotheses with  Testing Hypotheses with  Z-test statistic Z-test statistic A z-test provides in s tandard error  units   how far away from a sample  mean ( M ) deviates from a known  population mean ( µ ), thereby enabling  us to determine the probability of  obtaining any given sample mean.
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