Unformatted text preview: number when the random sample is considered as a sequence of numbers (after the experiment is run). Question 3. Write in words what is meant by the following four expressions: • E [ ¯ X ]: the expected value of the sample mean. • Var( ¯ X ): the variance of the sample mean. • E [ S 2 ]: the expected value of the sample variance. • Var( S 2 ): the variance of the sample variance. www.ece.drexel.edu/faculty/sweber 1 November 14, 2007...
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This note was uploaded on 04/05/2010 for the course ENGR 361 taught by Professor Eisenstein during the Spring '04 term at Drexel.
 Spring '04
 Eisenstein

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