Exam 1: Defining and Collecting Data

True or False: Sampling error becomes an ethical issue if the findings are purposely presented without reference to sample size and margin of error so that the sponsor can promote a viewpoint that might otherwise be truly insignificant.

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 "How satisfied are you with the U.S.economy today with 1 = very satisfied,2 = moderately satisfied,3 = neutral,4 = moderately dissatisfied,and 5 = very dissatisfied?" result in

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 was your age at your last birthday?" result in

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 population of interest is

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 Dean of Students conducted a survey on campus.Grade point average (GPA)is an example of a ________ numerical variable.

True or False: The grade level (K-12)of a student is an example of a nominal scaled variable.

Which of the following sampling methods will more likely be susceptible to ethical violation?

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?" result in

True or False: Whether the university is private or public is an example of a categorical variable.

Most colleges admit students based on their achievements in a number of different areas.Whether a student has taken any advanced placement courses is an example of a ________ variable.

Which of the following yields a cluster sample?

Which of the following scenarios will yield a nonprobability sample?

True or False: Items or individuals in a judgment sample are chosen according to their probability of occurrence.

True or False: 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 fifty students on her roster into ten groups starting from the first student on the roster.The first student was randomly selected from the first group.Then every tenth student was selected from the remaining students.This is an example of a cluster sample.

True or False: Measurement error can become an ethical issue when an interviewer purposely guides the responses in a particular direction.

A personal computer user survey was conducted.Computer brand primarily used is an example of a ________ 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 "How would you rate the condition of the U.S.economy with 1 = excellent,2 = good,3 = decent,4 = poor,5 = terrible?" result in

True or False: You stand at the main entrance to a departmental store and pick the first 20 customers that enter the store after it has opened its door for business on a single day.This is an example of a systematic sample.

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.