Exam 2: Descriptive Statistics: Tabular and Graphical Presentations

Partial results of a study follow in a crosstabulation of column percentages. a.Interpret the 18% found in the first row and first column of the crosstabulation. b.If 50 of those in the study paid by check, how many of the males paid by check?

A graphical device for depicting categorical data that have been summarized in a frequency distribution, relative frequency distribution, or percent frequency distribution is a(n)

Twenty employees of ABC Corporation were asked if they liked or disliked the new district manager. Below are their responses. Let L represent liked and D represent disliked. a.Construct a frequency distribution and a bar chart. b.Construct a relative frequency distribution 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. The percentage of students working 19 hours or less is

A market research firm has conducted a study to determine consumer preference for a new package design for a particular product. The consumers, ages were also noted. a.Which package design was most preferred overall? b.What percent of those participating in the study preferred package A? c.What percent of those under 25 years of age preferred package A? d.What percent of those aged 25  40 preferred package A? e.Is the preference for package A the same for both age groups?

Exhibit 2-4 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. -Refer to Exhibit 2-4. Among the students who plan to go to graduate school, what percentage indicated "Other" majors?

Exhibit 2-1 The numbers of hours worked (per week) by 400 statistics students are shown below. -Refer to Exhibit 2-1. The percentage of students working 10  19 hours is

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.

A frequency distribution is

Develop a stretched stem-and-leaf display for the data set below, using a leaf unit of 10.

The sum of the frequencies in any frequency distribution always equals

A __________ can be used to graphically present quantitative data.

A graphical presentation of a frequency distribution, relative frequency distribution, or percent frequency distribution of quantitative data constructed by placing the class intervals on the horizontal axis and the frequencies on the vertical axis is a

A summary of the results of a job satisfaction survey follows. What is wrong with the relative frequency distribution?

Exhibit 2-1 The numbers of hours worked (per week) by 400 statistics students are shown below. -Refer to Exhibit 2-1. The midpoint of the last class is

Exhibit 2-3 The number of sick days taken (per month) by 200 factory workers is summarized below. -Refer to Exhibit 2-3. The cumulative frequency for the class of 11  15

Exhibit 2-3 The number of sick days taken (per month) by 200 factory workers is summarized below. -Refer to Exhibit 2-3. The number of workers who took more than 10 sick days per month

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students. a.Construct a relative frequency distribution. b.Construct a cumulative frequency distribution. c.Construct a cumulative relative frequency distribution.

A(n) __________ is a graph of a cumulative distribution.

Exhibit 2-1 The numbers of hours worked (per week) by 400 statistics students are shown below. -Refer to Exhibit 2-1. The class width for this distribution