Exam 2: Presenting Data in Tables and Charts

$\text { TABLE 2-12 }$ 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 Table 2-12_____, percent of the 200 were females who were against the plan.

The width of each bar in a histogram corresponds to the

A type of vertical bar chart in which the categories are plotted in the descending rank order of the magnitude of their frequencies is called a

TABLE 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 Table 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 frequency of the fifth class would be_______ .

TABLE 2-6 A sample of 200 students at a Big-Ten university was taken after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following table contains the result. Did Well in Midterm Did Poorly in Midterm Studying for Exam 80 20 Went Bar Hopping 30 70 -Referring to Table 2-6, if the sample is a good representation of the population, we can expect _____percent of those who spent the weekend studying to do poorly on the midterm.

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

TABLE 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 Table 2-12, construct a table of row percentages.

$\text { TABLE 2-12 }$ 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 Table 2-12, if the sample is a good representation of the population, we can expect _____percent of the population will be males.

Apple Computer, Inc. collected information on the age of their customers. 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.

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.

TABLE 2- 5 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. Relative Time (in Minutes) Frequency 0 but lessthan 5 0.37 5 but less than 10 0.22 10 but lessthan 15 0.15 15 but less than 20 0.10 20 but lessthan 25 0.07 25 but lessthan 30 0.07 30 or more 0.02 -Referring to Table 2-5, if 100 calls were sampled,______of them would have lasted less than 15 minutes.

TABLE 2- 10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-10, 90% of the job applicants scored above or equal to ___________.

TABLE 2- 10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-10, ______percent of the applicants scored between 20 and below 50.

The relative frequency is the frequency in each class divided by the total number of observations.

TABLE 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 Table 2-8,_____ of the 100 members visited the health club at least 52 times in a year.

TABLE 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 the histogram from Table 2- 10, ________percent of the job applicants scored between 10 and 20.

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

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 2-2 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 Table 2-2, how many regional offices are represented in the survey results?

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive first.