15) What percentage of Seattle passengers use AS? a) 50% b) 88% c) 76% d) 44% e) 24% 16) What percentage of Phoenix passengers use AB? a) 24% b) 77% c) 23% d) 44% e) 86% Now suppose we collapse the tables over airport and form a new table as follows On time delayed total Alaskan Skies 3613 1023 4636 America Best 2680 696 3376 17) The on time rates for airlines AS and AB for all passengers are respectively; a) 50% and 60% b) 44% and 66% c) 90% and 50% d) 78% and 79% e) 22% and 17% 18) A correct statement about the variables is a) The collapsing variable is airport location. b) The collapsing variable is on time/delayed c) The collapsing variable is airline (AS, AB). d) There is no Simpson’s paradox here. e) The response variable is airport location.
15) What percentage of Seattle passengers use AS? a) 50% b) 88% c) 76% d) 44% e) 24% 16) What percentage of Phoenix passengers use AB? a) 24% b) 77% c) 23% d) 44% e) 86% Now suppose we collapse the tables over airport and form a new table as follows On time delayed total Alaskan Skies 3613 1023 4636 America Best 2680 696 3376 17) The on time rates for airlines AS and AB for all passengers are respectively; a) 50% and 60% b) 44% and 66% c) 90% and 50% d) 78% and 79% e) 22% and 17% 18) A correct statement about the variables is a) The collapsing variable is airport location. b) The collapsing variable is on time/delayed c) The collapsing variable is airline (AS, AB). d) There is no Simpson’s paradox here. e) The response variable is airport location.
Practice%20exam1_2301_Spring_2017.docx