Exam 14: Business Analytics
Exam 1: Defining and Collecting Data205 Questions
Exam 2: Organizing and Visualizing Variables212 Questions
Exam 3: Numerical Descriptive Measures163 Questions
Exam 4: Basic Probability171 Questions
Exam 5: Discrete Probability Distributions117 Questions
Exam 6: The Normal Distribution144 Questions
Exam 7: Sampling Distributions127 Questions
Exam 8: Confidence Interval Estimation187 Questions
Exam 9: Fundamentals of Hypothesis Testing: One-Sample Tests177 Questions
Exam 10: Two-Sample Tests300 Questions
Exam 11: Chi-Square Tests128 Questions
Exam 12: Simple Linear Regression209 Questions
Exam 13: Multiple Regression307 Questions
Exam 14: Business Analytics254 Questions
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Quick Changeover Techniques establish ways to clean and maintain the necessary housekeeping aspects of a work environment.
(True/False)
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SCENARIO 14-3
is a measure of the probability that can
The tree diagram below shows the results of the classification tree model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No") into its bundled program offering based on the price ($30, $40, $50, $60) and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No") using the data set of 100 customers collected from a survey.
-Referring to SCENARIO 14-3, what percentage of the variation in whether a customer will switch into its bundled program offering can be explained by the price and whether the customer spends more than 5 hours a day watching TV?
(Short Answer)
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SCENARIO 15-6
The maker of a packaged candy wants to evaluate the quality of her production process.On each of
16 consecutive days, she samples 600 bags of candy and determines the number in each day's sample that she considers to be of poor quality.The data that she developed follow. Number Proportion 1 33 0.0550000 2 29 0.0483333 3 31 0.0516667 4 32 0.0533333 5 43 0.0716667 6 45 0.0750000 7 46 0.0766667 8 48 0.0800000 9 48 0.0800000 10 46 0.0766667 11 28 0.0466667 12 32 0.0533333 13 28 0.0466667 14 32 0.0533333 15 31 0.0516667 16 24 0.0400000
-Referring to SCENARIO 15-6, a p control chart is to be constructed for these data.The lower control limit is _, while the upper control limit is _.
(Short Answer)
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SCENARIO 14-5
The output below shows the results of the neural network model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No") into its bundled program offering based on the price ($30, $40, $50, $60) and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No") using the data set of
100 customers collected from a survey.
-Referring to SCENARIO 14-5, out of the 27 customers who did not switch in the validation data set, how many are correctly classified by the neural network?
(Short Answer)
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Once the control limits are set for a control chart, one attempts to
(Multiple Choice)
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The forward-and-backward computation among the three layers of a multilayer perceptron is repeated until the output layer detects that the difference between the predicted results and the target values has been minimized or is at an acceptable level.
(True/False)
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There is no significant difference between filtering performed in a complex real- world business analytic and filtering performed using the slicers in a PivotTable in Excel.
(True/False)
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The likelihood ratio chi square statistic G2be attributed to the response that has occurred.
(True/False)
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C p >1 indicates that if the process average can be centered, then more than99.73% of the observations will fall inside the specification limits.
(True/False)
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Which of the following situations suggests a process that appears to be operating out of statistical control?
(Multiple Choice)
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SCENARIO 14-3
is a measure of the probability that can
The tree diagram below shows the results of the classification tree model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No") into its bundled program offering based on the price ($30, $40, $50, $60) and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No") using the data set of 100 customers collected from a survey.
-Referring to SCENARIO 14-3, what is the highest rate of switching into the bundled offering?
(Short Answer)
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SCENARIO 14-4
The regression tree below was obtained for predicting the weekend box office revenue of a newly released movie (in thousands of dollars) based on data collected in different cities on the expenditure (at $25, $30, $35, $40, $45, $50, $55, $60, $65 or $70 thousand) spent on TV advertising and the number of times (10, 15, 20, 25, 30 or 35) a day the advertisement appear on TV.
-Referring to SCENARIO 14-4, what percentage of the variation in weekend box office revenue can be explained by the amount spent on TV advertising and the number of times a day the advertisement appears on TV?
(Short Answer)
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The LogWorth statistic is used to decide when to split a node of a regression tree.
(True/False)
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Which of the following is NOT one of the categories of predictive analytics methods?
(Multiple Choice)
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SCENARIO 14-3
is a measure of the probability that can
The tree diagram below shows the results of the classification tree model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No") into its bundled program offering based on the price ($30, $40, $50, $60) and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No") using the data set of 100 customers collected from a survey.
-Referring to SCENARIO 14-3, the highest probability of switching is predicted to occur among customers who watch more than 5 hours of TV a day and are offered the bundled price of higher than $50.
(True/False)
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SCENARIO 14-2
The treemap below shows the amounts (size) measured in billions of US dollars and percentage changes from prior year (color) of business-to-consumer ecommerce sales last year for North America, Asia Pacific, Western Europe, Central & Eastern Europe, Latin America, and Middle East
& Africa.
-Referring to SCENARIO 14-2, which region has the smallest amount of business-to-consumer ecommerce sales last year?
(Short Answer)
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Which of the following is not part of the DMAIC process in Six Sigma management?
(Multiple Choice)
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The smaller the capability index, the more capable a process is of meeting customer requirements.
(True/False)
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SCENARIO 14-5
The output below shows the results of the neural network model that has been constructed to predict the probability of a cable company's customers who will switch ("Yes" or "No") into its bundled program offering based on the price ($30, $40, $50, $60) and whether the customer spends more than 5 hours a day watching TV ("Yes" or "No") using the data set of
100 customers collected from a survey.
-Referring to SCENARIO 14-5, the misclassification rate of 0.2058824 in the validation data set means that how many customers in the validation data are incorrectly classified?
(Short Answer)
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