Exam 1: Defining and Collecting Data

To find out the potential impact of a new zoning law on a neighborhood,the legislators conduct a focus group interview by inviting the members of the housing owners association of that neighborhood.This is an example of a

True or False: The amount of time a student spent studying for an exam is an example of a continuous variable.

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The number of tickets a person has received in the last 3 years is an example of a ________ numerical variable.

A marketing research firm,in conducting a comparative taste test,provided three types of peanut butter to a sample of households randomly selected within the state.Which of the 4 methods of data collection is involved when people are asked to compare the three types of peanut butter?

To estimate the mean number of hours a student at a major university spent in the library,a researcher obtained the list of students from the registrar's office,from which she can select a random sample of 200 students.This list is a ________.

TABLE 1-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products. -Referring to Table 1-1,the possible responses to the question "How many people are there in your household?" are values from a

TABLE 1-2 A Wall Street Journal poll asked 2,150 adults in the United States a series of questions to find out their view on the U.S.economy. -Referring to Table 1-2,the possible responses to the question "Are you 1.Currently employed, 2.Unemployed but actively looking for job,3.Unemployed and quit looking for job?" result in

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

True or False: The amount of calories contained in a 12-ounce package of cheese is an example of a discrete variable.

In purchasing an automobile,there are a number of variables to consider.The body style of the car (sedan,coupe,wagon,etc.)is an example of a ________ variable.

True or False: An electronic appliance chain gathered customer opinions on their services using the customer feedback forms that are attached to the product registration forms.This is an example of a convenience sample.

At US Data Corporation's website,they advertised that "Because of our commitment to quality and our vast amount of industry knowledge and experience,we have grown to be one of America's leading providers of mailing lists,marketing data,sales leads and research data.We maintain databases of information on consumers and businesses nationwide that set industry standards for mission critical currency,reliability and accuracy." Trying to reach 500 potential donors for their annual phone donation campaign,a local fire department purchased a list of donors from the company.This list is an example of a

TABLE 1-2 A Wall Street Journal poll asked 2,150 adults in the United States a series of questions to find out their view on the U.S.economy. -Referring to Table 1-2,the possible responses to the question "What do you think is the current unemployment rate?" result in

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?

The evening host of a dinner dance reached into a bowl,mixed all the tickets around,and selected the ticket to award the grand door prize.What sampling method was used?

Which of the 4 methods of data collection is involved when a person counts the number of cars passing designated locations on the Los Angeles freeway system?

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

True or False: Measurement error will become an ethical issue when the findings are presented without reference to sample size and margin of error.

True or False: The quality ("terrible," "poor," "fair","acceptable," "very good," and "excellent")of a day care center is an example of a nominal scaled variable.

TABLE 1-2 A Wall Street Journal poll asked 2,150 adults in the United States a series of questions to find out their view on the U.S.economy. -Referring to Table 1-2,the possible responses to the question "In which year do you think the last recession in the United States started?" result in