State University recently randomly sampled ten 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:
Reaction
A process in which substances interact to form new substances with different physical and chemical properties.
Pentanamide
An organic compound characterized by the presence of a five-carbon chain terminated with an amide group, with the formula CH3(CH2)3CONH2.
1-Pentanamine
An organic compound, a type of primary amine with the chemical formula C5H13N, used in chemical synthesis and as an intermediate.
Reagent
A substance or compound added to a system to cause a chemical reaction or test for a reaction.
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