Exam 2: Organizing and Visualizing

SCENARIO 2-2 At a meeting of information systems officers for regional offices of a national company, a survey was taken to determine the number of employees the officers supervise in the operation of their departments, where X is the number of employees overseen by each information systems officer. X f_ 1 7 2 5 3 11 4 8 5 9 -Referring to Scenario 2-2, across all of the regional offices, how many total employees were Supervised by those surveyed?

SCENARIO 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period in the past. 2-46 Organizing and Visualizing Variables -Referring to Scenario 2-17, construct a table of column percentages.

SCENARIO 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period in the past. 2-46 Organizing and Visualizing Variables -True or False: Referring to Scenario 2-17, in general, retail sales for the apparel industry have seen a modest growth between Year 1 and Year 2.

True or False: The Guidelines for Developing Visualizations recommend labeling all axes only when it is possible.

SCENARIO 2-15 The figure below is the ogive for the amount of fat (in grams)for a sample of 36 pizza products where the upper boundaries of the intervals are: 5, 10, 15, 20, 25, and 30. -Referring to Scenario 2-15, roughly what percentage of pizza products contains less than 10 Grams of fat?

SCENARIO 2-18 The stem-and-leaf display below shows the result of a survey on 50 students on their satisfaction with their school with the higher scores represent higher level of satisfaction. -Referring to Scenario 2-18, how many students have a satisfaction level below 60?

True or False: Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 U.S.companies.Companies that have higher numbers of employees appear to also have higher total revenue.

SCENARIO 2-2 At a meeting of information systems officers for regional offices of a national company, a survey was taken to determine the number of employees the officers supervise in the operation of their departments, where X is the number of employees overseen by each information systems officer. X f_ 1 7 2 5 3 11 4 8 5 9 -Referring to Scenario 2-2, how many regional offices are represented in the survey results?

Referring to Scenario 2-11, construct a cumulative percentage distribution for the defects data if the corresponding frequency distribution uses "0 but less than 5" 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, if the sample is a good representation of the population, we can expect _______ percent of those for the plan in the population will be males.

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, ________ of the 100 members visited the health club at least 52 times in a year.

True or False: The percentage polygon is formed by having the lower boundary of each class represent the data in that class and then connecting the sequence of lower boundaries at their respective class percentages.

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 between 10 and 20.

True or False: Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 U.S.companies.There appears to be a positive relationship between total revenue and the number of employees.

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 visited the health club more than anyone else in the sample visited the facility ________ times.

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 10 calls lasted 30 minutes or more, how many calls lasted less than 5 minutes?

True or False: A Walmart store in a small town 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.

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, what is the cumulative relative frequency for the percentage of calls That lasted 10 minutes or more?

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 males in the population will be against the plan.

SCENARIO 2-7 -Referring to Scenario 2-7, if a frequency distribution with equal sized classes was made from this data, and the first class was "10 but less than 20," the frequency of that class would be ________.