chapter8 - 8- 1Chapter EightSampling Methods and the...

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Unformatted text preview: 8- 1Chapter EightSampling Methods and the Central Limit Sampling Methods and the Central Limit TheoremTheoremGOALSWhen you have completed this chapter, you will be able to:ONEExplain why a sample is the only feasible way to learn about a population.TWODescribe methods to select a sample.THREEDefine and construct a sampling distribution of the sample mean.FOURExplain the central limit theorem. Goals8- 2Chapter Eight continuedSampling Methods and the Central Limit Sampling Methods and the Central Limit TheoremTheoremGOALSWhen you have completed this chapter, you will be able to:FIVEUse the Central Limit Theorem to find probabilities of selecting possible sample means from a specified population. Goals8- 3Why Sample the Population?Why sample?The destructive nature of certain tests.The physical impossibility of checking all items in the population.The cost of studying all the items in a population.The adequacy of sample results in most cases.The time-consuming aspect of contacting the whole population.8- 4Probability Sampling/MethodsSystematic Random SamplingThe items or individuals of the population are arranged in some order. A random starting point is selected and then every kthmember of the population is selected for the sample....
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This note was uploaded on 12/28/2011 for the course BA 210 taught by Professor Ms.deppen during the Fall '11 term at Montgomery College.

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chapter8 - 8- 1Chapter EightSampling Methods and the...

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