Exam 2: Organizing and Visualizing Variables

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, if the sample is a good representation of the population, we can expect _______ percent of the females in the population will not be against the plan.

Relationships in a contingency table can be examined more fully if the frequencies are converted into _______ .

The Guidelines for Developing Visualizations recommend using the simplest possible visualization.

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, _______ percent of the 200 were not neutral.

Apple Computer, Inc.collected information on the age of their customers. Suppose the youngest customer was 12 and the oldest was 72.To study the percentage of their customers who are below a certain age, it can use an ogive.

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, ________ percent of the 600 were females who either owned or did not own a portable Blu-ray player.

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons)in a day by 25 drive-through car wash operations in Phoenix. -Referring to Scenario 2-13, construct a frequency distribution for the detergent data, using "9.0 but less than 10.0 gallons" as the first class.

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Scenario 2-12, of those neutral in the sample, ________ percent were males.

A Walmart store monitors customer complaints and organizes these complaints into six distinct categories.Over the past year, suppose the company has received 534 complaints.One possible graphical method for representing these data would be a Pareto chart.

A professor of economics at a small Texas university wanted to determine what year in school students were taking his tough economics course.Shown below is a pie chart of the results.What percentage of the class took the course prior to reaching their senior year?

A survey of 150 executives were asked what they think is the most common mistake candidates make during job interviews.Six different mistakes were given.Which of the following is the best for presenting the information?

SCENARIO 2-5 The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Scenario 2-5, if 100 calls were randomly sampled, how many calls lasted 15 minutes or longer?

SCENARIO 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, ________ percent of the job applicants scored below 50.

If the values of the seventh and eighth class in a cumulative percentage distribution are the same, we know that there are no observations in the eighth class.

SCENARIO 2-8 The Stem-and-Leaf display represents the number of times in a year that a random sample of 100 "lifetime" members of a health club actually visited the facility. -Referring to Scenario 2-8, the person who has the largest leaf associated with the smallest stem visited the facility ________ times.

The Guidelines for Developing Visualizations recommend always starting the scale for a vertical axis at zero.

To compare one large set of numerical data to another, a ________ distribution must be developed from the frequency distribution.

SCENARIO 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Scenario 2-14, ________ percent of the 600 were males who owned a portable Blu-ray player.

In constructing a polygon, each class grouping is represented by its _______ and then these are consecutively connected to one another.

Microsoft Excel creates distribution tables using user-defined classes.