Exam 1: Defining and Collecting Data

SCENARIO 1-3 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 1-3,the manager decides to ask a sample of customers,who have bought a Blu-ray player made by the company and filed a complaint over the past year,to fill in a survey about whether they are satisfied with the product.This method will most likely suffer from

The possible responses to the question "How many times in the past three months have you visited a city park?" are values from a discrete variable.

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

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

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,

Coverage error can become an ethical issue if a group is intentionally excluded from the frame.

The grade level (K-12)of a student is an example of a nominal scaled variable.

The answer to the question "What is your favorite color?" is an example of an ordinal scaled variable.

The amount of time a student spent studying for an exam is an example of a continuous variable.

Sampling error can be reduced by taking larger sample sizes.

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 "In which year were you born?" are values from a

A personal computer user survey was conducted.Primary word processing package used is an example of a variable

Researchers suspect that the average number of units earned per semester by college students is rising.A researcher at Calendula College wishes to estimate the number of units earned by students during the spring semester at Calendula.To do so,he randomly selects 100 student transcripts and records the number of units each student earned in the spring term.He found that the average number of semester units completed was 12.96 units per student.Identify the population of interest to the researcher.

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 and computed the portion of students in the sample who visited campus bars on the weekend before the final exam.The portion of all students at her university who visited campus bars on the weekend before the final exam week is an example of

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 many out of every 10 U.S.voters do you think feel that the U.S.economy is in a good shape?" are values from a

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?" are values from a

Marital status is an example of an ordinal scaled variable.

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 portion of students in the sample who visited campus bars on the weekend before the final exam week is an example of .

A population frame for a survey contains a listing of 6,179 names.Using a table of random numbers,which of the following code numbers will appear on your list?