Two-sided one-proportion z-test

Definition

A hypothesis test used to determine if a sample proportion is significantly different from a specified value. It allows for testing in both directions (greater than and less than).

Related terms

Null hypothesis: A statement that assumes there is no significant difference between the observed sample proportion and the specified value.

Alternative hypothesis: A statement that assumes there is a significant difference between the observed sample proportion and the specified value, either greater or less.

Critical value: A threshold determined by significance level (α) which helps determine if we reject or fail to reject the null hypothesis.