Exam 1: Defining and Collecting Data

SCENARIO 1-3 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 1-3, if there are 4 different brands of Blu-ray players made by the Company, the best sampling strategy would be to use a

A personal computer user survey was conducted.Primary word processing package used is an example of a _______ variable

Marital status is an example of an ordinal scaled variable.

True or False: A statistic is usually unobservable while a parameter is usually observable.

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

The Dean of Students conducted a survey on campus.Class designation (Freshman, Sophomore, Junior, Senior)is an example of a _______ variable.

The personnel director at a large company studied the eating habits of the company's Employees.The director noted whether employees brought their own lunches to work, ate at the Company cafeteria, or went out to lunch.The goal of the study was to improve the food service at The company cafeteria.This type of data collection would best be considered as

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?

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

True or False: Measurement error can become an ethical issue when a survey sponsor chooses leading questions that guide the responses in a particular direction.

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 _______.

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

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.

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

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

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 population of interest is

True or False: Sampling error can be completely eliminated by taking larger sample sizes.

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.The population of interest Is

True or False: A sample is the portion of the universe that is selected for analysis.

True or False: A sample is always a good representation of the target population.