Exam 1: Defining and Collecting Data

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?" result in

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 .

The Commissioner of Health in New York State wanted to study malpractice litigation in New York.A sample of 31 thousand medical records was drawn from a population of 2.7 million patients who were discharged during 2010.The true proportion of malpractice claims filed from the population of 2.7 million patients is a .

Which of the following sampling methods is a probability sample?

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?

A statistic is usually unobservable while a parameter is usually observable.

Systematic samples are less efficient than a stratified sample.

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?" result in

If a simple random sample is chosen with replacement, everyone has the same chance of selection on every selection.

A sample is the portion of the universe that is selected for analysis.

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

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

The universe or "totality of items or things" under consideration is called

The chancellor of a major university was concerned about alcohol abuse on her campus and wanted to find out the proportion of students at her university who visited campus bars on the weekend before the final exam week.Her assistant took a random sample of 250 students.The answer on "whether you visited campus bars on the weekend before the final exam week" from students in the sample 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 2,150 adults make up

A population frame for a survey contains a listing of 72,345 names.Using a table of random numbers, how many digits will the code numbers for each member of your population contain?

Which of the following yields a simple random sample?

The number of calories contained in a 12-ounce package of cheese is an example of a discrete variable.

The question: "How much did you earn last year rounded to the nearest hundreds of dollars?" will most likely result in measurement 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 "How many Blu-ray players made by other manufacturers have you used? "results in