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 "How would you rate the quality Of your purchase experience with 1 = excellent, 2 = good, 3 = decent, 4 = poor, 5 = terrible?" Result in

True or False: The only way one can eliminate sampling error is to take the whole population as the sample.

Referring to Scenario 1-2, the possible responses to the question "On the scale of 1 to 100 with 1 Being extremely anxious and 100 being total not anxious, rate your level of anxiety in this U.S. Economy" are values from a

True or False: Sampling error becomes an ethical issue if the findings are purposely presented without reference to sample size and margin of error so that the sponsor can promote a viewpoint that might otherwise be truly insignificant.

True or False: Using different frames to generate data can lead to totally different conclusions.

The number of defective apples in a single box will be measured on an interval scale.

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

Which of the following sampling methods will more likely be susceptible to ethical violation When used to form conclusions about the entire population?

True or False: Systematic samples are less efficient than a stratified sample.

True or False: There can be only one sample selected from a population.

True or False: A statistic is usually used to provide an estimate for a usually unobserved parameter.

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

Which of the following is a discrete quantitative (numerical)variable?

Which of the following sampling methods will more likely be susceptible to ethical violation When used to form conclusions about the entire population?

True or False: 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 sampling process begins by locating appropriate data sources called ___________.

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, then X is an Example of

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.

True or False: A convenience sample is a type of probability sample.

True or False: Coverage error can become an ethical issue if a particular group is intentionally excluded from the frame.