Exam 2: Presenting Data in Tables and Charts

TABLE 2-9 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 Table 2-9, if a frequency distribution with equal sized classes was made from this data, and the first class was "0 but less than 10," the class midpoint of the third class would be ________.

TABLE 2-4 Every spring semester, the School of Business coordinates with local business leaders a luncheon 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. -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?

TABLE 2-9 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 Table 2-9, ________ of the 100 members visited the health club at least 52 times in a year.

The level of satisfaction ("Very unsatisfied", "Fairly unsatisfied", "Fairly satisfied", and "Very satisfied") in a class is an example of an ordinal scaled variable.

TABLE 2-14 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a month by 25 drive-through car wash operations in Phoenix. -Referring to Table 2-14, if a relative frequency or percentage distribution for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use at least 10 gallons but less than 13 gallons of detergent in a month?

The Dean of Students conducted a survey on campus. Grade point average (GPA) is an example of a ________ numerical variable.

TABLE 2-13 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 Table 2-13, ________ percent of the 200 were males.

Data on the number of part-time hours students at a public university worked in a week were collected. Which of the following is the best chart for presenting the information?

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "What is your annual income rounded to the nearest thousands?" result in

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "How would you rate the quality of your purchase experience with 1 = excellent, 2 = good, 3 = decent, 4 = poor, 5 = terrible?" result in

Faculty rank (professor to lecturer) is an example of discrete numerical data.

TABLE 2-12 The ordered array below resulted from taking a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. Defects -Referring to Table 2-12, if a frequency distribution for the defects data is constructed, using "0 but less than 5" as the first class, the relative frequency of the "15 but less than 20" class would be ________.

TABLE 2-11 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-11, ________ percent of the job applicants scored below 50.

TABLE 2-6 The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Table 2-6, if 100 calls were sampled, ________ of them would have lasted less than 15 minutes.

When studying the simultaneous responses to two categorical questions, we should set up a

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "Are you happy, indifferent, or unhappy with the performance per dollar spent on the DVD player?" are values from a

TABLE 2-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 2-1, the possible responses to the question "In which year were you born?" result in

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.

TABLE 2-6 The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Table 2-6, if 10 calls lasted 30 minutes or more, how many calls lasted less than 5 minutes?

TABLE 2-18 The following table presents total retail sales in millions of dollars for the leading apparel companies during April 2008 and April 2009. -Referring to Table 2-18, construct a side-by-side bar chart.