You calculate a correlation coefficient (rather than a t-test or F-ratio) when ______.

A) you are interested in comparing group means
B) the independent and dependent variables are both categorical
C) the independent and dependent variables are both continuous
D) the independent variable is categorical and the dependent variables is continuous

What are sampling units?

A) individual researchers who do the sampling
B) individual units selected for study
C) geographic units from which individuals are selected
D) lists from which individual research participants are selected

A malfunctioning valve in a filling machine can create assignable variation.

Solve the following set of equations graphically:
3x - 2y = 9
x = 3

A marketing manager wants to test the hypothesis that 90% of tennis magazine's subscribers live in their own homes. Accordingly, a simple random sample of 80 is taken from the magazine's list of subscribers. The sample turns out to contain 64 homeowners. Use a significance level of = .05.
Test statistic = ______________
p-value = ______________
Conclusion: ______________
Interpretation: __________________________________________

Angela has a monthly gross income of $3,000 and her expenses are $1,200.What is her back-end ratio?

A) 25%
B) 30%
C) 40%
D) 45%