1. On a 100-point test, Jill received 85 points. On a separate 100-point test, Jack received 85 points. When these scores were converted to z scores based on their own individual class means and standard deviations, Jill received z = 2.6 and Jack received z = 2.5. Which of these students received a higher score when compared to others in their class? a. Jack b. Jill c. Both performed equally well when compared to the other students in their class. d. It is impossible to determine without having the actual means and standard deviations of the different distributions. 2. Suppose you have calculated that the correlation between number of hours spent watching TV and your grade on an English test is -1.80. Which of the following do you know to be true? a. People who watch more TV got a lower grade on the test. b. More TV watching caused people to do worse on the test. c. The coefficient of determination is 3.24 d. You have made a mistake in your calculation. e. Both a and b are true. 3. Kayleigh is explaining the importance of wearing sunscreen at the beach to her daughter. She states the more sunscreen you wear, the less severe your sunburn can be. This would indicate that the amount of sunscreen your wear and sunburns demonstrate a a. Positive correlation. b. Negative correlation. c. Zero correlation. d. Curvilinear correlation. e. Multiple correlation. 4. If 64% of the total variability in Y is explained by X, which could be the value of r? a. +0.64 b. -0.80 C. +0.32 d. +0.40 e. There is no way to determine what r might be