Exam 1: An Introduction to Business Statistics and Analytics
Exam 1: An Introduction to Business Statistics and Analytics98 Questions
Exam 2: Descriptive Statistics and Analytics: Tabular and Graphical Methods120 Questions
Exam 3: Descriptive Statistics and Analytics: Numerical Methods145 Questions
Exam 4: Probability and Probability Models150 Questions
Exam 5: Predictive Analytics I: Trees, K-Nearest Neighbors, Naive Bayes,101 Questions
Exam 6: Discrete Random Variables150 Questions
Exam 7: Continuous Random Variables150 Questions
Exam 8: Sampling Distributions111 Questions
Exam 9: Confidence Intervals149 Questions
Exam 10: Hypothesis Testing150 Questions
Exam 11: Statistical Inferences Based on Two Samples140 Questions
Exam 12: Experimental Design and Analysis of Variance132 Questions
Exam 13: Chi-Square Tests120 Questions
Exam 14: Simple Linear Regression Analysis147 Questions
Exam 15: Multiple Regression and Model Building85 Questions
Exam 16: Predictive Analytics Ii: Logistic Regression, Discriminate Analysis,101 Questions
Exam 17: Time Series Forecasting and Index Numbers161 Questions
Exam 18: Nonparametric Methods103 Questions
Exam 19: Decision Theory90 Questions
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Which of the following is a quantitative variable?
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C
Which of the following is a categorical variable?
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Correct Answer:
D
Any characteristic of a population unit is a(n)
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D
If we sample without replacement, we do not place the unit chosen on a particular selection back into the population.
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The term big data refers to the use of survey data by big business.
(True/False)
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Which of the following is not a method of numerical descriptive analytics?
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Data that are collected by an individual through personally planned experimentation or observation are ________.
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A low response rate has no effect on the validity of a survey's findings.
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The change in the daily price of a stock is what type of variable?
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In a data set of information on college business students, an example of an element is their cumulative GPA.
(True/False)
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A random sample is selected so that every element in the population has the same chance of being included in the sample.
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Cross-sectional data are data collected at the same or approximately the same point in time.
(True/False)
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It is possible to use a random sample from a population to make statistical inferences about the entire population.
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College entrance exam scores, such as SAT scores, are an example of a(n) ________ variable.
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An identification of police officers by rank would represent a(n) ________ level of measurement.
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