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Unformatted text preview: 1 Review for Exam 2 Tables Provided (names are from the web site): Normal distribution (like Table I), t-distribution (like Table IV), tail areas for t curves (like Table VI), 2 critical values (Table VII) Chapter 7 1. Be able to state what a point estimator is. (HW: 7.2) 2. Be able to state what an unbiased estimator is. (HW: 7.2) 3. Be able to state what a consistent estimator is. 4. Be able to define the precision and reliability of a confidence and compare the relationship between them. (HW. 7.10, 7.12) 5. Be able to state what is random about a confidence interval, that is, what is the meaning of a generic interval. 6. Be able to determine if you are to calculate the confidence interval for the population mean or population proportion. a) If the population mean is wanted, be able to determine if you are supposed to use z crit or t crit . (HW: supplemental problems, for all questions on the exam) 7. Be able to calculate and interpret the CI in the following cases: one-sample z one-sample t 2-sample independent 2-sample paired ( ) 1 2 ( )...
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