Exam 1: Defining and Collecting Data

The Dean of Students conducted a survey on campus. Number of credits currently enrolled for 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 2,150 adults make up

A summary measure that is computed to describe a characteristic of an entire population is called

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 is your age at last birthday?" result in

In a business statistics class students sit randomly without particular preferences. A sample is selected by including everybody who sits in the first row. This is an example of a cluster sample.

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

Referring to Scenario 1-2, the possible responses to the question "In which year do you think the last recession in the U.S. started?" result in

________ results from the exclusion of certain groups of subjects from a population frame.

To gather information on the preferences of instructors at universities on topics for a business statistics textbook that it will publish, a publishing company invited 10 faculty members who Have adopted one of the textbooks that it has published. This is an example of a

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

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?" result in

In purchasing an automobile, there are a number of variables to consider. The color of the car is an example of a _______ variable.

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

Which of the following sampling methods will more likely be susceptible to ethical violation when used to form conclusions about the entire population?

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.

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 "How many out of every 10 U.S. voters do you think feel that the U.S. economy is in a good shape?" result in

The Commissioner of Health in New York State wanted to study malpractice litigation in New York. A sample of 31 thousand medical records was drawn from a population of 2.7 million patients who were discharged during 2010. The true proportion of malpractice claims filed from the population of 2.7 million patients is a _______.

The professor of a business statistics class wanted to find out the mean amount of time per week her students spent studying for the class. She divided the students into the left, right and center groups according to the location they sat in the class that day. One of these 3 groups was randomly selected and everyone in the group was asked the mean amount of time per week he/she spent studying for the class. This is an example of a cluster sample.

A company selling apparel online sends out emails every Monday to all its customers who made a purchase. This is an example of a

Faculty rank (professor to lecturer) is an example of discrete numerical data.