Confidence Intervals for the Mean (σ Known)

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Presentation transcript:

Confidence Intervals for the Mean (σ Known) Statistika – Al Muiz

1/13/2019

ESTIMATING POPULATION PARAMETERS In this chapter, you will learn an important technique of statistical inference—to use sample statistics to estimate the value of an unknown population parameter. In this section and the next, you will learn how to use sample statistics to make an estimate of the population parameter m when the population standard deviation s is known (this section) or when s is unknown. To make such an inference, begin by finding a point estimate. 1/13/2019

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CONFIDENCE INTERVALS FOR A POPULATION MEAN Using a point estimate and a margin of error, you can construct an interval estimate of a population parameter such as μ. This interval estimate is called a confidence interval. 1/13/2019

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SAMPLE SIZE 1/13/2019

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LATIHAN SOAL 1/13/2019

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