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In television's early years, most commercials were 60 seconds long. Now, however, commercials can be any length. The objective of commercials remains the same-to have as many viewers as possible remember the product in a favorable way and eventually buy it. In an experiment to determine how the length of a commercial is related to people's memory of it, 60 randomly selected people were asked to watch a 1-hour television program. In the middle of the show, a commercial advertising a brand of toothpaste appeared. Some viewers watched a commercial that lasted for 20 seconds, others watched one that lasted for 24 seconds, 28 seconds, ..., 60 seconds. The essential content of the commercials was the same. After the show, each person was given a test to measure how much he or she remembered about the product. The commercial times and test scores (on a 30-point test) were recorded.
a. Draw a scatter diagram of the data to determine whether a linear model appears to be appropriate.
b. Determine the least squares line.
c. Interpret the coefficients.
Consider a quiz grading system that grades student responses to quizzes. Draw a UML diagram for classes Quiz, Question, EssayQuestion, MultipleChoiceQuestion, Student, and Submission.
what information-gathering methods are most appropriate to learn about requirements from reliable's own management staff and other employees? from client health-care organizations? from suppliers?
Construct a conditional that assigns 10,000 to the variable bonus if the value of the variable goodsSold is greater than 500,000.
An advantage of OO development is consistency of language and OO development often omits writing a distinct requirements specification document.
Do you believe that any form of document content validation should be applied to web pages before they are placed in the public domain?
Assume you have functions that you want to call for many individual year values, as well as ranges of years, and you are deciding on whether to use an if statement or a switch statement.
The subset-sum problem is defined as follows: given a set B of n positive integers and an integer K, can you find a subset of B whose elements' summation is equal to K? Design an algorithm to solve this problem. Address its correctness and running..
Indicate changes (using shorthand representation) which you would require to make to Premiere Products database design to support following requirements.
What are some of the typical problems a project team may encounter during a project's life cycle? How can they be resolved? Explain.
Write an report on a significant software security
Think about the flashlight-messaging (ABC=123); Determine the key drawbacks of the Numbered Code?
Using the data flow diagram, explain change management procedure which might be used in large organization concerned with creating software for external clients.
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