Exam 1: Defining and Collecting Data

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?

Which of the following can be reduced by proper interviewer training?

The Human Resources Director of a large corporation wishes to develop an employee benefits package and decides to select 500 employees from a list of all (N = 40,000) workers in order to study their preferences for the various components of a potential package. Information obtained from the sample will be used to draw conclusions about the true population _______.

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 "Are you happy, indifferent, or unhappy with the performance per dollar spent on the Blu-ray player?" result in

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

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 "In which year were you born?" are values from a

To demonstrate a sampling method, the instructor in a class picked the first 5 students sitting in the last row of the class. This is an example of a

Using different frames to generate data can lead to totally different conclusions.

Which of the following types of samples can you use if you want to make valid statistical inferences from a sample to a population?

Most analysts focus on the cost of tuition as the way to measure the cost of a college education. But incidentals, such as textbook costs, are rarely considered. A researcher at Drummand University wishes to estimate the textbook costs of first-year students at Drummand. To do so, She monitored the textbook cost of 250 first-year students and found that their average textbook Cost was $600 per semester. Identify the population of interest to the researcher.

A telemarketer set the company's computerized dialing system to contact every 25th person listed in the local telephone directory. What sampling method was used?

The possible responses to the question "How many times in the past three months have you visited a city park?" are values from a discrete 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 "How would you rate the condition of the U.S. economy with 1 = excellent, 2 = good, 3 = decent, 4 = poor, 5 = terrible?" Are values from a

Which of the following is NOT a reason for the need for sampling?

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?

Which of the following yields a systematic sample?

The Dean of Students mailed a survey to a total of 400 students. The sample included 100 students randomly selected from each of the freshman, sophomore, junior, and senior classes on Campus last term. What sampling method was used?

The answer to the question "How many hours on average do you spend watching TV every week?" is an example of a ratio scaled variable.

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.

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?