What is p hat?

In statistics, p hat (p̂) represents the sample proportion of a categorical variable. It is calculated by dividing the number of occurrences of a particular attribute in the sample by the total sample size.

P hat is often used to estimate the true population proportion based on a sample. It is commonly used in hypothesis testing and confidence interval calculations for proportions.

When interpreting p hat, it is important to consider the sample size and the variability within the sample. A larger sample size will generally lead to a more reliable estimate of the population proportion.

P hat is a useful and versatile statistic in statistical analysis, providing valuable insights into population characteristics based on sample data.