Unformatted text preview: standard deviations of the population mean. When we test a sample, such as a z test statistic , that z value is a measure of standard deviation. Here are the critical values for 0.05 and 0.01 for one and two tail tests for z ....keep these handy since they will be useful in answering some parts of the hypothesis testing process. Twotailed Test Level of Significance Rejection Begins At 0.05 +/ 1.96 Level of Significance Rejection Begins At 0.01 +/ 2.58 One Tailed Test Level of Significance Rejection Begins At 0.05 + or – 1.65 Level of Significance Rejection Begins At 0.01 + or – 2.33...
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 Spring '10
 Regis
 Statistics, Normal Distribution, Standard Deviation, rejection region

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