Exam 1: Defining and Collecting Data

Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children's clothing should be manufactured and marketed in Larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an Example of

The answer to the question "How do you rate the quality of your business statistics course" is an example of an ordinal scaled variable.

The Dean of Students conducted a survey on campus. Number of clubs, groups, teams, and organizations affiliated with on campus is an example of a _______ numerical variable.

The chancellor of a major university was concerned about alcohol abuse on her campus and wanted to find out the proportion of students at her university who visited campus bars on the Weekend before the final exam week. Her assistant took a random sample of 250 students and Computed the portion of students in the sample who visited campus bars on the weekend before The final exam. The portion of all students at her university who visited campus bars on the Weekend before the final exam week is an example of

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.

Since a _______ is not a randomly selected probability sample, there is no way to know how well it represents the overall population.

At US Data Corporation's web site, 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

Most colleges admit students based on their achievements in a number of different areas. The total SAT score achieved by a student is an example of a _______ numerical variable.

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

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

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.

SCENARIO 1-2 A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out their view on the U.S. economy. -Referring to Scenario 1-2, the possible responses to the question "What do you think is the current number of people unemployed in the country?" are values from a

SCENARIO 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 Scenario 1-1, 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

The grade level (K-12) of a student is an example of a numerical variable.

Which of the following scenarios will yield a nonprobability sample?

SCENARIO 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 Scenario 1-1, the possible responses to the question "What brand of Blu-ray player did you purchase?" result in

SCENARIO 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 Scenario 1-1, the possible responses to the question "How much time do you use the Blu-ray player every week on the average?" are values from a

When participants are allowed to self-select into the sample, you have a nonprobability sample.

Which of the following is NOT a reason for selecting a sample?

There can be only one sample selected from a population.