State University recently randomly sampled seven students and analyzed grade point average (GPA)and number of hours worked off-campus per week.The following data were observed: 
The test statistic for testing whether the two variables are significantly correlated is approximately z = 1.56.
Definitions:
Exponents
Numbers that indicate how many times a base is to be multiplied by itself.
Rational Exponents
Exponents that are fractions, where the numerator represents a power and the denominator represents a root of the base number.
Rewrite
To express something in a different way or form, often aimed at achieving greater clarity.
Evaluate
The process of calculating the value of an expression, equation, or function for given variables or numbers.
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