Exam 2: Graphical Descriptive Techniques 1

{All-Nighters Narrative} There is a relationship between whether or not a student stayed up all night before the midterm,and how well they did on the midterm.Describe this relationship using percentages.

The values of quantitative data are categories.

Twenty-five voters participating in a recent election exit poll in Minnesota were asked to state their political party affiliation.Coding the data as R for Republican,D for Democrat,and I for Independent,the data collected were as follows: I,R,D,I,R,I,I,D,R,I,I,D,R,R,I,D,I,R,I,D,I,D,R,R,and I.Construct a frequency bar chart from this data.What does the bar chart tell you about the political affiliations of those in this sample?

Provide one example of ordinal data; one example of nominal data; and one example of interval data.

Using Excel,do a cross-classification table showing the relationship between the type of customer and gender.Are gender and promotional customers related? ​ ​

A(n)____________________ distribution lists the categories of a nominal variable and the proportion with which each occurs.

Business School Graduates A sample of business school graduates were asked what their major was.The results are shown in the following frequency distribution. ​ ​ -{Business School Graduates Narrative} Draw a pie chart to summarize this data.Which major was the most popular?

The classification of student major (accounting,economics,management,marketing,other)is an example of a(n)

Suppose you measure the number of minutes it takes an employee to complete a task,where the maximum allowed time is 5 minutes,and each time is rounded to the nearest minute.Data from 130 employees is summarized below.Construct a frequency bar chart and a pie chart from this data.How long did it take most employees to complete the task?

Your gender is a nominal variable.

Which situation identifies when to use pie charts and/or bar charts?

Two hundred males and two hundred females were asked whether or not college baseball should have a playoff system (yes/no/undecided).Pie charts of the responses for males vs.females are shown below.Which of the following describes the relationship between gender and opinion?

Identify the type of data for which each of the following graphs is appropriate.a.Pie chartb.Bar chart

Using the following cross-classification table,draw two bar charts that compare pet ownership for males vs.females.Are gender and pet ownership related?

You can graph the relationship between two nominal variables using two ____________________ or two ____________________.

Your final grade in a course (A,B,C,D,E)is a nominal variable.

The classification of student class designation (freshman,sophomore,junior,senior)is an example of a(n)

Business School Graduates A sample of business school graduates were asked what their major was.The results are shown in the following frequency distribution. ​ ​ -{Business School Graduates Narrative} Draw a pie chart of this data.Are you able to reconstruct the original data from this pie chart alone?

A relative frequency distribution lists the categories and their counts.

A cross-classification table is the same thing as two frequency distribution tables,one for each variable.