Chapter 5

Question 1

Distribution of Means

Answer 1

Distribution of means of samples of a given size from a population

Question 2

What is another name for distribution of means?

Answer 2

Sample distribution of the mean

Question 3

When is a comparison distribution used?

Answer 3

When testing hypotheses involving a single sample of more than one individual

Question 4

Mean of a Distribution of Means

Answer 4

The mean of a distribution of means of samples of a given size from a population

Question 5

Is the sample mean the less than, greater than, or equal to the population mean?

Answer 5

Equal to

Question 6

Variance of a Distribution of Means

Answer 6

Variance of the population divided by the number of scores in each sample

Question 7

Standard Deviation of a Distribution of Means

Answer 7

Square root of the variance of a distribution of means

Question 8

What is another name for the standard deviation of a distribution of means? (2)

Answer 8

Standard error of the mean

Standard error

Question 9

Z Test

Answer 9

Hypothesis testing procedure in which there is a single sample and the population variance is known

Question 10

Confidence Interval

Answer 10

The range of scores that is likely to include the true population mean

Question 11

Detailed Definiton of a Confidence Interval

Answer 11

The range of possible population means from which it is not highly unlikely that you could have obtained your sample mean

Question 12

Confidence Limit

Answer 12

Upper or lower value of a confidence interval

Question 13

95% Confidence Level

Answer 13

Confidence interval in which there is a 95% chance that the population mean falls within this interval

Question 14

99% Confidence Level

Answer 14

Confidence interval in which there is a 99% chance that the population mean falls within this interval