Week5_Part_B

Week5_Part_B - Week 5: Central Limit Theorem l Sampling...

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Unformatted text preview: Week 5: Central Limit Theorem l Sampling Distributions l Central Limit Theorem l Probability and the Central Limit Theorem x x x x x x x x x x x x x x x x x x x x x x x x 1 A sampling distribution is the probability distribution of a sample statistic that is formed when samples of size n are repeatedly taken from a population. If the sample statistics is the sample mean, then the distribution is the sampling distribution of the sample means. The sampling distribution consists of the values of the sample means, ,... , , , , , 6 5 4 3 2 1 x x x x x x 2 x Sampling Distributions Population with mean ( u ) 4 x 1 x 5 x 3 x 6 x = x n x = x x x x x x x x x x x x x x x x x x x x x x x x x x the sample means will have a normal distribution The Central Limit Theorem If a sample n 30 is taken from a population with any type distribution that has a mean = and standard deviation = = x with a mean n x = and standard deviation If a sample of any size is taken from a population with...
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This note was uploaded on 05/17/2011 for the course BIS 115 taught by Professor Wright during the Spring '10 term at DeVry Chicago.

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Week5_Part_B - Week 5: Central Limit Theorem l Sampling...

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