Dsci 100 - Study guides, Class notes & Summaries
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csci 251 questions with verified answers

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DSCI 551 questions with 100% correct answers
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DSCI exam 2 2023 with 100% correct answers
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If a sample of items is taken and the mean of the sample is outside the control limits the process is 
a. out of control and the cause should be established 
b. in control, but not capable of producing within the established control limits 
c. within the established control limits with only natural causes of variation 
d. monitored closely to see if the next sample mean will also fall outside the control limits 
e. producing high quality products - correct answer a. out of control and the caus...
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DSCI Exam 2023 with 100% correct answers
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What type of Internet monitoring technique records information about a customer during a web surfing session such as what websites were visited and how long the visit was, what ads were viewed and what was purchased? 
 
Key logger 
Stealthware 
Clickstream 
Web log - correct answer Clickstream 
 
Which act restricts what information the federal government can collect? 
 
Privacy act 
 
Bork Bill 
 
Freedom of Information Act 
 
Communications Assistance for Law Enforcement Act - correct answ...
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DSCI Final exam 2023 with 100% correct answers
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Early in the class we had discussed risk. Which option below is most accurate? 
 
a. Risk cannot be defined, but is used as a general idea when talking about danger. 
b. Baseline risk concerns the inevitable collisions in baseball between the runners and basemen. c. Risk must always be about safety, and not ever death. 
d. Risk is defined as likelihood, and is interchangeable with the term, "likelihood". 
e. Risk is defined as chance, and is interchangeable with the term, "chance". 
f. Risk ...
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DSCI Exam 2 2023 with 100% correct answers
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Using color-coded wires to reduce mistakes associated with assembling complex electronic products is not an example of an application of - correct answer the kaizen concept. 
 
The International Organization for Standardization (ISO) is a specialized agency for standardization that was founded in 1946, and it is composed of representatives from the national standards bodies of - correct answer 91 nations. 
 
Electronic data interchange and Internet links speed up - correct answer the veloc...
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DSCI 304 Exam 1 2023 with 100% correct answers
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The function that is part of every business organization that produces products and/or delivers services is the __________ function. - correct answer Operations 
 
Which of the following is a key difference between the production of goods and the delivery of services? - correct answer The feasibility of using inventory 
 
Operations and sales are __________ functions; all other functions are __________ functions. - correct answer line; support 
 
One thing that must be managed in all proce...
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DSCI Exam 3 2023 with 100% correct answers
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It is important for Big Data and self-service business intelligence to go hand in hand to get maximum value from analytics. (T/F) - correct answer True 
 
Hadoop and MapReduce require each other to work. (T/F) - correct answer False 
 
There is a clear difference between the type of information support provided by influential users versus the others on Twitter. (T/F) - correct answer True 
 
Which Big Data approach promotes efficiency, lower cost, and better performance by processing jobs in ...
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DSCI 320 Exam 1 2023 with 100% correct answers
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What is MIS? - correct answer - Management Information systems 
- A business function, like accounting and human resources, which moves information about people, products, and processes across the company to facilitate decision making and problem solving 
 
What is the primary driver of IT in business? - correct answer From the first lecture: "The big point: Business drives the tech. The problems of modern business desire a need for modern technological solutions." 
 
What is the long tail...
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DSCI 303 Exam 1 Test exam 2023 with 100% correct answers
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T or F: Exponential smoothing adds a percentage (called alpha) of the last period's forecast to estimate the next period's demand. - correct answer FALSE - Exponential smoothing does not add a percentage to the last period's forecast error. 
 
T or F: Statistical process control focuses on the acceptability of process output. - correct answer FALSE - Statistical process control focuses on the variability of processes. 
 
T or F: Control limits tend to be wider for more variable processes. -...
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DSCI Exam 1 2023 with 100% correct answers
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if last month's forecast was 10, last month's actual was 100 and the exponential smoothing alpha parameter value is .2, what is the exponential smoothing forecast - - correct answer 28 
 
The upper bound for for the number of predictor parameters in multiple linear regression is - - correct answer limited only by computing resources 
 
___________ is a synonym for independent. - - correct answer Predictor 
 
The error term, or epsilon, is the _______________ part of the model. - cor...
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