sampling error =

Just like the sample mean x, the sample proportion is a random variable. Hence, it possesses a probability distribution, which is called its …. distribution.

The mean of the sample proportion, p̂. is denoted by μp̂ and is …. the population proportion, p

The sample proportion, p̂is called an ….. of the population proportion, p.

p̂ is … estimator of p (جت في الامتحان )

The standard deviation of the sample proportion, p̂, is denoted by σ, and is given by the formula

If the standard deviation of a sample statistic decreases as the sample size is increased, that statistic is said to be a …. estimator

p̂is a consistent estimator of p

The factor = √N-n/N-1 is called the … -population correction factor