Exam 1: Defining and Collecting Data
Exam 1: Defining and Collecting Data207 Questions
Exam 2: Organizing and Visualizing Variables213 Questions
Exam 3: Numerical Descriptive Measures167 Questions
Exam 4: Basic Probability171 Questions
Exam 5: Discrete Probability Distributions217 Questions
Exam 6: The Normal Distributions and Other Continuous Distributions189 Questions
Exam 7: Sampling Distributions135 Questions
Exam 8: Confidence Interval Estimation189 Questions
Exam 9: Fundamentals of Hypothesis Testing: One-Sample Tests187 Questions
Exam 10: Two-Sample Tests208 Questions
Exam 11: Analysis of Variance216 Questions
Exam 12: Chi-Square and Nonparametric Tests178 Questions
Exam 13: Simple Linear Regression214 Questions
Exam 14: Introduction to Multiple Regression336 Questions
Exam 15: Multiple Regression Model Building99 Questions
Exam 16: Time-Series Forecasting173 Questions
Exam 17: Business Analytics115 Questions
Exam 18: A Roadmap for Analyzing Data329 Questions
Exam 19: Statistical Applications in Quality Management Online162 Questions
Exam 20: Decision Making Online129 Questions
Exam 21: Understanding Statistics: Descriptive and Inferential Techniques39 Questions
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Coverage error can become an ethical issue if a group is intentionally excluded from the frame.
(True/False)
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To demonstrate a sampling method, the instructor in a class picked the first 5 students sitting in the last row of the class.This is an example of a
(Multiple Choice)
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The number of defective apples in a single box is an example of a continuous variable.
(True/False)
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The level of satisfaction ("Very unsatisfied", "Fairly unsatisfied", "Fairly satisfied", and "Very satisfied")in a class is an example of an ordinal scaled variable.
(True/False)
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For a population frame containing N = 1,007 individuals, what code number should you assign to the first person on the list to use a table of random numbers?
(Multiple Choice)
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The Dean of Students conducted a survey on campus.The gender of the student is an example of a _______ variable.
(Short Answer)
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Most colleges admit students based on their achievements in several different areas. Whether a student has taken any advanced placement courses is an example of a _______ variable.
(Short Answer)
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The quality ("terrible", "poor", "fair", "acceptable", "very good" and "excellent")of a day care center is an example of a numerical variable.
(True/False)
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To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf.This is an example of a
(Multiple Choice)
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________results from the exclusion of certain groups of subjects from a population frame.
(Short Answer)
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Student grades (A to F)are an example of continuous numerical data.
(True/False)
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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
(Multiple Choice)
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The Dean of Students conducted a survey on campus.Class designation (Freshman, Sophomore, Junior, Senior)is an example of a _______ variable.
(Short Answer)
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Measurement error can become an ethical issue when an interviewer purposely guides the responses in a direction.
(True/False)
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A personal computer user survey was conducted.Computer brand primarily used is an example of a _______ variable.
(Short Answer)
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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 people in your household are unemployed currently?" result in
(Multiple Choice)
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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 "What do you think is the current number of people unemployed in the country?" are values from a
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