Recording-2025-03-11T18:31:16.429Z

Population Proportion

The true proportion of all individuals in a population that fit into a described category.

Point Estimate

A sample proportion (denoted as p hat) that is used as an estimate for a population proportion.

Interval

A range of values that represents what the true population parameter could be.

Sampling Distribution

The distribution of sample proportions (p hats) derived from all possible random samples of a specified size.

Deductive Reasoning

A logical process where one starts with known facts or truths and seeks evidence to support them.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of values.

Alpha Level

The percentage of samples in a sampling distribution that is determined to be significant, often used to denote the cutoff for identifying significant results.

Critical Value (z star)

A special z score that indicates the boundary between normal and significant values in a distribution.

Significant Sample

A sample outcome that lies in the top or bottom percentile of the sampling distribution, indicating it is not normal.

Normal Model

A distribution model that represents the expected sample proportions based on the true population proportion.