AP Statistics Chapter 8 - Estimating with Confidence

presence of outliers

When sample is smaller than 30, the t procedures can be used except in the ________ or strong skewness.

Standard Error

________ When the standard deviation of a statistic is estimated from the data, the result is called the ________ of the statistic.

margin of error

The interval is calculated from the data and has the form: point estimate ± ________ The difference between the point estimate and the true parameter value will be less than the ________ in C % of all samples.

The interval is calculated from the data and has the form

point estimate ± margin of error The difference between the point estimate and the true parameter value will be less than the margin of error in C% of all samples

8.2

Estimating a Population Proportion Conditions for Inference about a Population Proportion  Random Sample -The data are a random sample from the population of interest

8.3

Estimating a Population Mean Conditions for Inference about a Population Mean  Random Sample -The data are a random sample from the population of interest