* not completed

. The Student's t-test is named...

After the many students who use the test. correct incorrect

After the inventor of the test whose last name was Student. correct incorrect

After the student journal that first published the test. correct incorrect

After the pseudonym used by William Gosset. correct incorrect

* not completed

. The denominator of the t-test formula is...

Estimated variance correct incorrect

Population variance correct incorrect

Estimated standard error correct incorrect

Population standard deviation correct incorrect

* not completed

. Which of the following is true of the independent t-statistic?

It is a ratio of the population mean to the standard deviation correct incorrect

It is a ratio of the difference between two sample means to the standard error of the means correct incorrect

It is a ratio of the difference between a sample mean and a population mean, to the population standard deviation correct incorrect

None of the above correct incorrect

* not completed

. Jessica would like to find out if the test scores of her class are better than the average score over the past 5 years. The average score over the past 5 years is 70. What test should Jessica use?

Independent samples t-test correct incorrect

Dependent samples t-test correct incorrect

One-sample t-test correct incorrect

Single sample t-test correct incorrect

* not completed

. Conceptually, the t-test measures...

The effect of the independent variable after accounting for individual differences and random chance. correct incorrect

The effect of the independent variable after accounting for degrees of freedom. correct incorrect

The effect of the population mean after accounting for individual differences and random chance. correct incorrect

The effect of the population mean after accounting for degrees of freedom. correct incorrect