Single Sample t test quiz

How many samples are necessary for a single-sample t-test?

1

As the estimated standard error decreases, the single-sample t-value _______.

Increases

Single-sample t-values will always be positive.

False

The denominator of the t-test is the population mean.

False

The population of interest in a single-sample t-test _________

Is defined by the researcher

The shape of the t-distribution __________.

Is normally distributed; a bell curve

Can the standard error in the single-sample t-test be negative?

No; it's based on standard deviation, which is always positive

What values do you need to know for the population of interest to conduct a single-sample t-test?

The population mean

In a single-sample t-test if t = 0, it means ___________.

There is no difference between the population mean and the sample mean

As the estimated standard error value increases, the calculated single-sample t-value decreases.

True

The general formula of the t-test is the measure of effect divided by the measure of error.

True

The general goal of a single-sample t-test is to estimate if your sample came from a particular population.

True

The single-sample t-test is a ratio of the mean divided by the standard deviation

True

The purpose of a single-sample t-test is to compare

a sample mean with a population mean

William Sealy Gosset worked in what industry?

beer brewing

The goal of the single-sample t-test is to ___________.

estimate the chances that your sample came from a given population

The purpose of a single-sample t-test is to determine

if the sample came from a specific population

We use the __________ to estimate the population standard deviation in a single-sample t-test

sample standard deviation

What values do you need to know to perform a single-sample t-test?

the population mean and the sample standard deviation