Repeat the previous exercise for the data file created in Exercise 1.12 (page 22).
Refer to the Students data file introduced in Exercise 1.11 (page 21). For each variable in the data set, indicate whether it is
(a) Categorical or quantitative.
(b) Nominal, ordinal, or interval.
The Students data file at the text websites www. pearsonglobaleditions.com/Agresti shows responses of a class of social science graduate students at the University of Florida to a questionnaire that asked about Â female, Â male), AGE, high school Â (on a four-point scale), Â college GPA, Â distance (in miles) of the campus from your home town, Â distance (in miles) of the classroom from your current residence, average number of hours per week that you watch Â average number of hours per week that you participate in sports or have other physical exercise, Â number of times a week you read a newspaper, Â number of people you know who have died from AIDS or who are Â whether you are a vegetarian (yes, Â no), Â political affiliation (Â Democrat, Republican, Â independent), Â political ideology (Â very liberal, Â liberal, slightly liberal, Â moderate, Â slightly conservative, Â conservative, very conservative), how often you attend religious services (Â never, Â occasionally, most weeks, Â every week), opinion about whether abortion should be legal in the first three months of pregnancy (yes, Â no), Â support affirmative action (Â yes, no), and LIFE = belief in life after death (Â yes, Â no, Â undecided). You will use this data file for exercises in later chapters.
(a) Practice accessing a data file for statistical analysis with your software by going to this website and copying this data file. Print a copy of the data file. How many observations (rows) are there in the data file?
(b) Give an example of a question that could be addressed using these data with (i) descriptive statistics, (ii) inferential statistics
Using statistical software or a spread sheet program (such as Microsoft Excel), your instructor will help the class create a data file consisting of the values for class members of characteristics such as those in the previous exercise. One exercise in each chapter will use this data file.
(a) Copy the data file to your computer and print a copy.
(b) Give an example of a question that you could address by analyzing these data with (i) descriptive statistics, (ii) inferential statistics.