week 8 Quiz PUBH.docx

# week 8 Quiz PUBH.docx - Quiz Week 8 PUBH 6033 Question 1...

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Quiz - Week 8 PUBH 6033 Question 1 Correlation coefficient r quantifies linear relationship with a number between a. −1 and 1. b. Negative to positive infinity c. 0 to 1 d. 0 to infinity 0.62 points Question 2 When all points fall on a line with an upward slope, r = ? a. 1. b. 0. c. -1 d. Indeterminate 0.67 points Question 3 When all data points fall on a line with a downward slope, r = ? a. 1. b. 0. c. -1 d. Indeterminate 0.67 points Question 4 When data points trend upward, r is ? a. Positive b. Negative c. Neutral d. Indeterminate 0.67 points Question 5

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When data points trend downward, r is ? a. Positive b. Negative c. Neutral d. Indeterminate 0.67 points Question 6 The closer r is to 1 or −1, the ______the correlation. a. Weaker b. Stronger c. Neutral d. Non significant 0.67 points Question 7 In regression the quantitative response variable Y is the __ a. “dependent variable” b. “independent variable” c. “individual variable” d. “composite variable” 0.67 points Question 8 In regression the quantitative explanatory variable X is the __ a. “dependent variable” b. “independent variable” c. “individual variable” d. “composite variable” 0.67 points

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