Exam 1: Stats Starts Here
Exam 1: Stats Starts Here18 Questions
Exam 2: Displaying and Describing Data24 Questions
Exam 3: Relationships Between Categorical Variablescontingency Tables29 Questions
Exam 4: Understanding and Comparing Distributions28 Questions
Exam 5: The Standard Deviation As a Ruler and the Normal Model29 Questions
Exam 6: Scatterplots, Association, and Correlation26 Questions
Exam 7: Linear Regression30 Questions
Exam 8: Regression Wisdom18 Questions
Exam 9: Multiple Regression16 Questions
Exam 10: Sample Surveys28 Questions
Exam 11: Experiments and Observational Studies20 Questions
Exam 12: From Randomness to Probability20 Questions
Exam 13: Sampling Distribution Models and Confidence Intervals for Proportions20 Questions
Exam 14: Confidence Intervals for Means19 Questions
Exam 15: Testing Hypotheses17 Questions
Exam 16: More About Tests and Intervals20 Questions
Exam 17: Comparing Groupspaired16 Questions
Exam 18: Samples and Blocks14 Questions
Exam 19: Comparing Counts20 Questions
Select questions type
Consumer Reports Health routinely compares drugs in terms of effectiveness and safety.In
Summer 2008 they reviewed drugs used to treat arthritis.Among the information reported
Was convenience of use (how many pills required each day) and possible side effects (e.g.,
Dizziness, stomach upset).Convenience of use and possible side effects constitute the
________ of the study.
Free
(Multiple Choice)
4.9/5
(40)
Correct Answer:
B
A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused
On hotels in Hawaii.Among the variables for which it provided data was the price range for
Rooms with an ocean view.Which of the following statements is true?
Free
(Multiple Choice)
4.9/5
(40)
Correct Answer:
B
Researchers in e-commerce design an experiment to determine what factors are most
Important to online consumers when completing a transaction via the Internet.Individuals
Perform tasks on a set of Web sites and record their impressions about various attributes.
Which of the following would best describe the cases?
Free
(Multiple Choice)
4.8/5
(33)
Correct Answer:
A
A Consumer Reports Health study on arthritis drugs takes into consideration cost.Cost is
(Multiple Choice)
4.8/5
(33)
A few of the variables for which data were collected in the Pew Internet & Life Project study
About online shopping include age, gender, income, and number of hours spent shopping
Online per month.Which of the variables is categorical?
(Multiple Choice)
4.8/5
(35)
In a survey undertaken by a university to gauge student satisfaction in its online MBA
Program, one question asked students to indicate the number of credits they had transferred
Into the program.Which of the following is true?
(Multiple Choice)
4.8/5
(39)
A Consumer Reports study on tipping takes into consideration median amount of tipping for
Service providers.Tipping is
(Multiple Choice)
4.9/5
(36)
In the fall of 2007, the Pew Internet & Life Project conducted telephone interviews with a
Sample of American adults aged 18 and older about online shopping.American adults aged
18 and older constitute the ______ of the study.
(Multiple Choice)
4.7/5
(42)
A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused
On hotels in Hawaii.Among the variables for which it provided data was whether or not the
Hotel included a spA.This is best described as a
(Multiple Choice)
4.8/5
(38)
A Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected
Data on possible side effects.This is what kind of variable?
(Multiple Choice)
4.9/5
(33)
The Human Resources Department of a large corporation maintains records on its
Employees.Data are maintained of the following variables: Age, Employment Category,
Education, Whether or not the employee participates in a wellness program, and Paycheck
Benefit deductions.Which of these variables are categorical?
(Multiple Choice)
4.9/5
(36)
The Pew Internet & Life Project study about online shopping asked respondents to indicate
Their education level on the following scale: Less than High School, High School, Some
College, College +.Which of the following statements is (are) true?
(Multiple Choice)
4.8/5
(35)
A university is interested in gauging student satisfaction in its online MBA program.A
Survey is designed and administered via the Internet to a sample of students currently active
In the program.Which of the following would best describe the cases?
(Multiple Choice)
4.9/5
(26)
A Consumer Reports survey on the level of tipping for service providers.This is what kind
Of variable?
(Multiple Choice)
4.8/5
(31)
Businesses are interested in the work experience of recent graduates from a local business
School.Whether or not the graduates have work experience constitutes the ________ of the
Study.
(Multiple Choice)
5.0/5
(36)
The Human Resources Department of a large corporation maintains records on its
Employees.Data are maintained of the following variables: Age, Employment Category,
Education, and Whether or not the employee has an advanced degreE.Which of these
Variables are categorical?
(Multiple Choice)
4.8/5
(40)
What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of
Drugs used to treat arthritis?
(Multiple Choice)
4.8/5
(43)
What is the "What" in a Consumer Reports Tipping study on the level of tipping during the
Current holiday season compared to the last holiday season?
(Multiple Choice)
4.9/5
(45)
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