1 / 5

Population Proportion

Population Proportion. The fraction of values in a population which have a specific attribute p = Population proportion X = Number of items having the attribute N = Population Size. Sample Proportion. The fraction of items in a sample that have the attribute of interest p = x / n

gabrielknudsen
Download Presentation

Population Proportion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Population Proportion The fraction of values in a population which have a specific attribute p = Population proportion X = Number of items having the attribute N = Population Size

  2. Sample Proportion The fraction of items in a sample that have the attribute of interest p= x / n p = Sample proportion x = Number of items in the sample with the attribute n = Sample size

  3. Sampling Distribution of Proportion In many instances, the objective of sampling is to estimate a population proportion. In all instances, the decision makers could select a sample, compute the sample proportion, and make their decision based on the sample results. If the sample size is sufficiently large, the normal distribution can be used as a reasonable approximation to the discrete binomial distribution.

  4. Sampling Distribution of p Provided we have a large enough sample size, all the possible sample proportions will be approximately normally distributed with Standard Error

  5. Confidence Interval for the Population Proportion

More Related