Exam 1: Defining and Collecting Data

To gather information on the preferences of instructors at universities on topics for a business statistics textbook that it will publish,a publishing company invited 10 faculty members who have adopted one of the textbooks that it has published.This is an example of a

Which of the following is a discrete quantitative (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 "Out of a 100-point score with 100 being the highest and 0 being the lowest,what is your satisfaction level with the Blu-ray player that you purchased results in:

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?

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

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

In purchasing an automobile,there are several variables to consider.The color of the car is an example of a variable.

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.The Director will use the data from the sample to compute .

A summary measure that is computed to describe a characteristic from only a sample of the population is called

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

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 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?" are values from a

Measurement error can become an ethical issue when an interviewer purposely guides the responses in a direction.

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.

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.

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

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

In purchasing an automobile,there are several variables to consider.The body style of the car (sedan,coupe,wagon,etc. )is an example of a variable.

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

For a population frame containing N = 1,007 individuals,what code number should you assign to the first person on the list to use a table of random numbers?

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.A person's age is an example of a numerical variable.