Exam 2: Presenting Data in Tables and Charts

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 between 50 and 75?

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, the person who has the largest leaf associated with the smallest stem visited the facility ________ times.

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, of those who did well on the midterm in the sample, ________ percent of them went bar hopping the weekend before the midterm.

It is essential that each class grouping or interval in a frequency distribution be ________.

The British Airways Internet site provides a questionnaire instrument that can be answered electronically. Which of the 4 methods of data collection is involved when people complete the questionnaire?

You have collected data on the responses to two questions asked in a survey of 40 college students majoring in business-What is your gender (Male = M; Female =F) and What is your major (Accountancy = A; Computer Information Systems = C; Marketing = M). Which of the following is the best for presenting the data?

TABLE 2-10 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in Minneapolis. -Referring to Table 2-10, ________ apartments rented for at least $400 but less than $600.

Whether the university is private or public is an example of a nominal scaled variable.

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 "Out of a 100 point score with 100 being the highest and 0 being the lowest, what is your satisfaction level on the DVD player that you purchased?" are values from a

The amount of time a student spent studying for an exam will be measured on a ratio scale.

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, construct a table of column percentages.

The Dean of Students conducted a survey on campus. Number of credits currently enrolled for is an example of a ________ numerical variable.

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 spent the weekend studying and did well on the midterm.

When comparing two or more large batches of numerical data, the distributions being developed should use the same ________.

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

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. A person's age is an example of a ________ numerical variable.

The amount of calories contained in a pack of 12-ounce cheese will be measured on a ratio scale.

Which of the following is a continuous numerical variable?

The possible responses to the question "How long have you been living at your current residence?" are values from a continuous variable.

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, of those who went bar hopping the weekend before the midterm in the sample, ________ percent of them did well on the midterm.