PROBLEM 1PROBLEM 1

In the following examples, In the following examples, distinguish between response distinguish between response and explanatory variablesand explanatory variables• Attitude toward abortion on demand Attitude toward abortion on demand

(favor, oppose); Gender (male,female)(favor, oppose); Gender (male,female)• Heart disease (yes, no); Cholesterol Heart disease (yes, no); Cholesterol

levellevel• Race (white, nonwhite); Gender(male, Race (white, nonwhite); Gender(male,

female); vote for the President female); vote for the President (Republic, Democrat, Other); income(Republic, Democrat, Other); income

• Hospital (A, B); treatment(T1, T2), Hospital (A, B); treatment(T1, T2), Patient outcome (survive, die)Patient outcome (survive, die)

What scale of measurement is What scale of measurement is most appropriate for the most appropriate for the following variablesfollowing variables• Political party affiliation (democrat, Political party affiliation (democrat,

republican, other)republican, other)

• Highest degree obtained ( none, high Highest degree obtained ( none, high school, bachelor’s, master’s, doctorateschool, bachelor’s, master’s, doctorate

• Patient condition (good, fair, serious, Patient condition (good, fair, serious, critical)critical)

• Patient survive (in numbers of months)Patient survive (in numbers of months)

• Location of hospital in which data collected Location of hospital in which data collected (London, Boston, Rochester)(London, Boston, Rochester)

Describe a potential study that Describe a potential study that would have a categorical would have a categorical response variableresponse variable• List variables that would be List variables that would be

important in the studyimportant in the study• Distinguish between response and Distinguish between response and

explanatory variablesexplanatory variables• For each variable, identify the For each variable, identify the

measurement scalemeasurement scale• Indicate whether it would be treated Indicate whether it would be treated

as continous or discrete as continous or discrete