Exam 1: Defining and Collecting Data

When dealing with human surveys, we are usually interested in sampling with replacement.

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

The Quality Assurance Department of a large urban hospital is attempting to monitor and evaluate patient satisfaction with hospital services.Prior to discharge, a random sample of patients is asked to fill out a questionnaire to rate such services as medical care, nursing, therapy, laboratory, food, and cleaning.The Quality Assurance Department prepares weekly reports that are presented at the Board of Directors meetings and extraordinary/atypical ratings are easy to flag.True population characteristics estimated from the sample results each week are called _______.

Which of the following sampling methods is a probability sample?

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.

A sample of 300 subscribers to a magazine is selected from a population frame of 9,000 subscribers.If, upon examining the data, it is determined that no subscriber had been selected in the sample more than once,

The Dean of Students conducted a survey on campus.SAT score in mathematics is an example of a _______ numerical 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 many Blu-ray players made by other manufacturers have you used? "results in

Sampling error can be reduced by taking larger sample sizes.

The classification of student major (accounting, economics, management, marketing, other) is an example of

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 to study their preferences for the various components of a potential package.All the employees in the corporation constitute the _______.

Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children's clothing should be manufactured and marketed in larger sizes.If X is the weight of school children sampled in a nationwide study without rounding, then X is an example of

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

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

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?

The question: "How much did you earn last year rounded to the nearest hundreds of dollars?" will most likely result in measurement error.

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 to study their preferences for the various components of a potential package.The 500 employees who will participate in this study constitute the _______.

Which of the following yields a stratified 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 "Are you happy, indifferent, or unhappy with the performance per dollar spent on the Blu-ray player?" result in

If Excel discovers a column containing words or alphanumeric data, it treats the column as a ____ _____ ________.