Exam 2: Presenting Data in Tables and Charts

TABLE 2-7 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. -Referring to Table 2-7, ________ percent of the students in the sample went bar hopping the weekend before the midterm and did well on the midterm.

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 20 minutes or more.

The grade level (K-12) of a student 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, of those neutral in the sample, ________ percent were males.

A personal computer user survey was conducted. Primary word processing package used is an example of a ________ variable.

TABLE 2-5 A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. 8 -Referring to Table 2-5, what percentage of the respondents rated overall television quality with a rating of 50 or below?

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. How long a person has been a licensed driver is an example of a ________ numerical variable.

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, construct a histogram for the defects data, using "0 but less than 5" as the first class.

A ________ is a vertical bar chart in which the rectangular bars are constructed at the boundaries of each class interval.

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 randomly sampled, how many calls lasted 15 minutes or longer?

TABLE 2-8 The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in superior court. Note: 1L means the "low teens" - 10, 11, 12, 13, or 14; 1H means the "high teens" - 15, 16, 17, 18, or 19; 2L means the "low twenties" - 20, 21, 22, 23, or 24, etc. -Referring to Table 2-8, ________ percent of the cases were adjudicated within the first 2 years.

The amount of alcohol consumed by a person per week will be measured on an interval scale.

Jared was working on a project to look at global warming and accessed an Internet site where he captured average global surface temperatures from 1866. Which of the four methods of data collection was he using?

Ogives are plotted at the midpoints of the class groupings.

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 2-15 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. -Referring to Table 2-15, ________ percent of the 600 were females.

In order to compare one large batch of numerical data to another, a ________ distribution must be developed from the frequency distribution.

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, of the males in the sample, ________ percent were for the plan.

A personal computer user survey was conducted. The number of years using a personal computer is an example of a ________ numerical variable.

TABLE 2-8 The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in superior court. Note: 1L means the "low teens" - 10, 11, 12, 13, or 14; 1H means the "high teens" - 15, 16, 17, 18, or 19; 2L means the "low twenties" - 20, 21, 22, 23, or 24, etc. -Referring to Table 2-8, ________ percent of the cases were not adjudicated within the first 4 years.