Central Limit Theorem and Confidence Interval

Confidence interval A plausible range of values for the population parameter is called a confidence interval.

Sample size for margin of error

Inference for Other Estimators

Right skewed

Hypothesis testing for a signle mean

Sample statistic

Sampling distribution

Center

Confidence interval for a population mean: Conputed as the smaple mean plus/minus a margin of error (critical value corresponding to the middle xx% of the normal distribution times the standard error of the sampling distribution)

Sample

Spread

Shape

Population

Decision Error

Sample distribution