Sampling Distributions Flashcard

Front

Increasing the sample size will _______

Back

decrease variability

Front

What is the sampling distribution of sample mean?

Back

It is the probability distribution of the sample mean for all possible samples of a certain size from a population.

Front

These symbols represent the mean and standard deviation for which of the following distributions? (Population, Sample, Sampling Distribution)

Back

The Population

Front

These symbols represent the mean and standard deviation for which of the following distributions? (Population, Sample, Sampling Distribution)

Back

The Sampling Distribution

Front

Determine whether the description is for a parameter or a statistic: Proportion of people who use an electric toothbrush using data from a sample of 300 adults.

Back

Sample Statistic

Front

What is a sampling distribution?

Back

A sampling distribution is the probability distribution of a statistic (like the sample mean) obtained from a large number of samples drawn from a specific population.

Front

What does the Central Limit Theorem state?

Back

The Central Limit Theorem states that the sampling distribution of the sample mean will be normally distributed if the sample size is sufficiently large, regardless of the population's distribution.

Front

Define 'parameter' in statistics.

Back

A parameter is a numerical value that summarizes a characteristic of a population.

Front

Define 'statistic' in statistics.

Back

A statistic is a numerical value that summarizes a characteristic of a sample.

Front

What is the relationship between sample size and standard error?

Back

As the sample size increases, the standard error decreases.