Exam 1: Defining and Collecting Data

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?" 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

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 "In which year do you think the last recession in the U.S.started?" result in

A population frame for a survey contains a listing of 6,179 names.Using a table of random numbers, which of the following code numbers will appear on your list?

The Dean of Students conducted a survey on campus.Number of credits currently enrolled for is an example of a numerical variable.

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

The brand of TV one owns is an example of a numerical variable.

The Dean of Students conducted a survey on campus.Major area of study is an example of avariable.

The question: "Have you used any form of illicit drugs over the past 2 months?"will most likely result in measurement error if the question is answered.

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

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The distance a person drives in a year is an example of a variable.

Tim was planning for a meeting with his boss to discuss a raise in his annual salary.In preparation, he wanted to use the Consumer Price Index to determine the percentage increase in his real (inflation-adjusted) salary over the last three years.Which of the 4 methods of data collection was involved when he used the Consumer Price Index?

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 only reliable way a researcher can make statistical inferences from a sample to a population is to use nonprobability sampling methods.

A statistic is usually used to provide an estimate for a usually unobserved parameter.

To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf.This is an example of a

The answer to the question "What is your sleeping bag temperature rating?" is an example of a ratio scaled variable.

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

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?

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 sample in the study.