Sampling Distribution of a Sample Proportion: Learn It 2

  • Use technology to create a sampling distribution of a sample proportion given [latex]n[/latex] and [latex]p[/latex].
  • Calculate the mean and standard deviation for a sampling distribution of a sample proportion.
  • Recognize the difference between the standard deviation and the standard error of a sample proportion.

Sampling Distribution of a Sample Proportion

In order to get a sense of the pattern of variation in sample proportions, we need to generate more than five samples.

The distribution showing how sample proportions vary from sample to sample is called a sampling distribution of the sample proportion.

In statistics, we often talk about distributions. A sampling distribution is just a distribution of sample statistics as they vary from sample to sample. An illustration of the distinction between the population distribution of the variable, a single sample distribution of the variable, and the sampling distribution of sample proportions is shown below using unemployment data.

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