Unit 7 Flashcards
A number that describes some characteristic of a sample
Statistic
A number that describes some characteristic of a population
Parameter
Different random samples of the same size from the same population produce different values for a statistic
Sampling Variability
The distribution of values taken by the statistic in all possible samples of the same size from the same population
Sampling Distribution
A statistic used to estimate a parameter where the mean of its sampling distribution is equal to the value of the parameter being estimated
Unbiased Estimator
Describes the distribution of values taken by the sample proportion in all possible samples of the same size from the same population
Sampling Distribution of the Sample Proportion
Describes the distribution of values taken by the sample mean in all possible samples of the same size from the same population
Sampling Distribution of the Sample Mean
When the size of an SRS is sufficiently large, the sampling distribution of the sample mean is approximately normal
Central Limit Theorem (CLT)