Exam 2: Organizing and Visualizing

SCENARIO 2-3 Every spring semester, the School of Business coordinates a luncheon with local business leaders for graduating seniors, their families, and friends. Corporate sponsorship pays for the lunches of each of the seniors, but students have to purchase tickets to cover the cost of lunches served to guests they bring with them. The following histogram represents the attendance at the senior luncheon, where X is the number of guests each graduating senior invited to the luncheon and f is the number of graduating seniors in each category. -Referring to the histogram from Scenario 2-3, if all the tickets purchased were used, how many guests attended the luncheon?

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 2-18 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 in the 50s?

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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -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.

SCENARIO 2-20-A A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataA.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 63 Traditional mall 53 Local independent stores not in a mall 42 Strip mall or mini mall 27 Town hall mall 17 I do not plan to shop at any of these 12 -Referring to Scenario 2-20-A, construct a Pareto chart for the types of stores customers plan to shop at.

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, 90% of the job applicants scored above or equal to ________.

In graphing two categorical data, the side-by-side bar chart is best suited when comparing joint responses.

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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, of those neutral in the sample, ________ percent were males.

SCENARIO 2-20-A A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataA.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 63 Traditional mall 53 Local independent stores not in a mall 42 Strip mall or mini mall 27 Town hall mall 17 I do not plan to shop at any of these 12 -Referring to Scenario 2-20-A, the type of stores that the most customers plan to shop at is _________.

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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, if the sample is a good representation of the population, we can expect _______ percent of the population will own 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.

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. Time (in Minutes) Relative Frequency 0 but less than 5 0.37 5 but less than 10 0.22 10 but less than 15 0.15 15 but less than 20 0.10 20 but less than 25 0.07 25 but less than 30 0.07 30 or more 0.02 -Referring to Scenario 2-5, what is the cumulative relative frequency for the percentage of calls that lasted under 20 minutes?

SCENARIO 2-19-B You are the quality control manager of a water bottles company. One of the biggest complaints in the past years has been the breakage and, hence, the concern on the durability of the connector between the lid and the bottle which many users use as a handle for the bottles. To collect evidence before implementing any modification to the production process, your department has subjected 50 water bottles to a durability test and the following data on the number of times the handles have been used to lift the bottles before they break are contained in the file Scenario2-19-DataB.XLSX. 493 506 515 491 500 505 517 510 506 503 503 491 495 496 496 505 493 486 504 483 514 494 497 501 493 490 510 494 494 495 494 486 495 506 506 507 502 498 510 501 500 505 492 486 501 496 501 521 510 498 -Referring to Scenario 2-19-B, if a percentage histogram or percentage distribution was constructed using "473 but less than 480" as the first class, the percentage of bottles with handles that broke after being used for lifting at least 494 but less than 515 times would be ________.

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 distribution of the age among its customers, it is best to use a pie chart.

A multidimensional contingency table allows you to tally the responses of more than two continuous variables.

SCENARIO 2-20-B A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataB.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 54 Traditional mall 61 Local independent stores not in a mall 35 Strip mall or mini mall 25 Town hall mall 14 I do not plan to shop at any of these 9 -Referring to Scenario 20-20-B, construct a bar chart for the types of stores customers plan to shop at.

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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, of the females in the sample, ________ percent were either neutral or against the plan.

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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, _______ percent of the 200 were males who were not against the plan.

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 2-8 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. Stem Leaves 0 012222233333344566666667789999 1 1111222234444455669999 2 00011223455556889 3 0000446799 4 011345567 5 0077 6 8 7 67 8 3 9 0247 -Referring to Scenario 2-8, if a frequency distribution with equal sized classes was made from this data, and the first class was "0 but less than 10," the cumulative percentage of the next-to-last class would be ________.