Exam 2: Data Collection

Temperature in degrees Fahrenheit is an example of a(n)________ variable.

Measurements from a sample are called

Before deciding whether to assess heavy fines against noisy airlines,which sampling method would the Federal Aviation Administration probably use to measure the peak noise from departing jets as measured by a ground-level observer at a point one mile from the end of the departure runway?

Mail surveys are attractive because of their high response rates.

Creating a list of people by taking the third name listed on every 10th page of the phone book is an example of convenience sampling.

In last year's annual report,Thompson Distributors indicated that it had 12 regional warehouses.This is an example of ordinal level data.

Numerical data can be either discrete or continuous.

This year,Oxnard University produced two football All-Americans.This is an example of continuous data.

To measure satisfaction with its cell phone service,AT&T takes a stratified sample of its customers by age,gender,and location.Which is an advantage of this type of sampling,as opposed to other sampling methods?

A manager chose two people from her team of eight to give an oral presentation because she felt they were representative of the whole team's views.What sampling technique did she use in choosing these two people?

Internet surveys posted on popular websites have no bias since anyone can reply.

Responses on a seven-point Likert scale are usually treated as ratio data.

A Likert scale with an odd number of scale points between "Strongly Agree" and "Strongly Disagree"

The number of words on 50 randomly chosen textbook pages would be cross-sectional data.

Quantitative variables use which two levels of measurement?

An accounting professor wishing to know how many MBA students would take a summer elective in international accounting did a survey of the class she was teaching.Which kind of sample is this?

A population has groups that have a small amount of variation within them,but large variation among or between the groups themselves.The proper sampling technique is

Private statistical databases (e.g. ,CRSP)are usually free.

A stratified sample is sometimes recommended when

Your rating of the food served at a local restaurant using a three-point scale of 0 = gross,1 = decent,2 = yummy is ________ data.