Exam 2: Descriptive Statistics: Tabular and Graphical Presentations

Fifteen percent of the students in a school of Business Administration are majoring in Economics,20% in Finance,35% in Management,and 30% in Accounting.The graphical device(s)which can be used to present these data is (are)

Exhibit 2-1 The numbers of hours worked (per week)by 400 statistics students are shown below. -Refer to Exhibit 2-1.The cumulative frequency for the class of 20 - 29

Exhibit 2-2 A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. -Refer to Exhibit 2-2.What percentage of the students does not plan to go to graduate school?

Exhibit 2-1 The numbers of hours worked (per week)by 400 statistics students are shown below. -Refer to Exhibit 2-1.The number of students working 19 hours or less

A frequency distribution is

Categorical data can be graphically represented by using a(n)

Exhibit 2-2 A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. -Refer to Exhibit 2-2.Among the students who plan to go to graduate school,what percentage indicated "Other" majors?

Exhibit 2-3 Michael's Compute-All,a national computer retailer,has kept a record of the number of laptop computers they have sold for a period of 80 days.Their sales records are shown below: -Refer to Exhibit 2-3.The number of days in which the company sold less than 60 laptops is

Exhibit 2-3 Michael's Compute-All,a national computer retailer,has kept a record of the number of laptop computers they have sold for a period of 80 days.Their sales records are shown below: -Refer to Exhibit 2-3.The percentage of days in which the company sold at least 40 laptops is

If several frequency distributions are constructed from the same data set,the distribution with the widest class width will have the

A researcher is gathering data from four geographical areas designated: South = 1;North = 2;East = 3;West = 4.The designated geographical regions represent

In constructing a frequency distribution,the approximate class width is computed as

Exhibit 2-3 Michael's Compute-All,a national computer retailer,has kept a record of the number of laptop computers they have sold for a period of 80 days.Their sales records are shown below: -Refer to Exhibit 2-3.The class width of the above distribution is

The relative frequency of a class is computed by

A histogram is said to be skewed to the left if it has a

A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. a.Are a majority of the seniors in the survey planning to attend graduate school? b.Which discipline constitutes the majority of the individuals in the survey? c.Compute row percentages and comment on the relationship between the students' undergraduate major and their intention of attending graduate school. d.Compute the column percentages and comment on the relationship between the students' intention of going to graduate school and their undergraduate major.

There are 800 students in the School of Business Administration.There are four majors in the School: Accounting,Finance,Management,and Marketing.The following shows the number of students in each major. Develop a percent frequency distribution and construct a bar chart and a pie chart.

Exhibit 2-1 The numbers of hours worked (per week)by 400 statistics students are shown below. -Refer to Exhibit 2-1.If a cumulative frequency distribution is developed for the above data,the last class will have a cumulative frequency of

You are given the following data on the ages of employees at a company.Construct a stem-and-leaf display.

A student has completed 20 courses in the School of Arts and Sciences.Her grades in the 20 courses are shown below. a.Develop a frequency distribution and a bar chart for her grades. b.Develop a relative frequency distribution for her grades and construct a pie chart.