a. A researcher wants to compare the hand–eye coordination of men and women. She finds a random sample of 100 men and 100 women, and measures their hand–eye coordination = paired samples

b. A researcher wants to know whether professors with tenure have fewer office hours than professors without tenure. She observes the number of office hours for professors with and without tenure. = independent samples

Explanation:

Paired-samples t tests compare scores on two different variables but for the same group of cases; independent-samples t tests compare scores on the same variable but for two different groups of cases.

6 0

3 years ago

Which of the following correctly relates the measures of the measures of the measures of the diameter (d) and radius (r) of a ci

yaroslaw [1]

Hey!

Diameter is ½ of the radius. To find the radius when you have the diameter, divide by 2.

For example, if the diameter is 12, the the radius would be:

$12 \div 2 = 6$