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DFW rates. One measure of student success for colleges and

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig ISBN: 9781464158933 206

Solution for problem 9.39 Chapter 9

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Problem 9.39

DFW rates. One measure of student success for colleges and universities is the percent of admitted students who graduate. Studies indicate that a key issue in retaining students is their performance in so-called gateway courses. These are courses that serve as prerequisites for other key courses that are essential for student success. One measure of student performance in these courses is the DFW rate, the percent of students who receive grades of D, F, or W (withdraw). A major project was undertaken to improve the DFW rate in a gateway course at a large midwestern university. The course curriculum was revised to make it more relevant to the majors of the students taking the course, a small group of excellent teachers taught the course, technology (including clickers and online homework) was introduced, and student support outside the classroom was increased. The following table gives data on the DFW rates for the course over three years.17 In Year 1, the traditional course was given; in Year 2, a few changes were introduced; and in Year 3, the course was substantially revised. Year DFW rate Number of students taking course Year 1 42.3% 2408 Year 2 24.9% 2325 Year 3 19.9% 2126 Do you think that the changes in this gateway course had an impact on the DFW rate? Write a report giving your answer to this question. Support your answer by an analysis of the data.

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Parameter­ Population Proportion, a fixed quantity. Population Proportion = p Sample Proportion = p hat (estimate) number of successes over the sample size Will modify from each sample Only estimate of parameter Sampling Distribution of Statistics Values of the figure from all potential sample size Describing quantitative number Center­ mean of all values of the parameter Spread­ increasing of sample size means the spread is decreasing Shape­ sample size increases the graph looks more as a bell­shaped Caveats  Must have a symbolic tester  N must be “big enough” Normal Distribution  Draw curve and axis  Area that signifies probability 

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Chapter 9, Problem 9.39 is Solved
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Textbook: Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card
Edition: 8
Author: David S. Moore, George P. McCabe, Bruce A. Craig
ISBN: 9781464158933

Since the solution to 9.39 from 9 chapter was answered, more than 258 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, edition: 8. Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card was written by and is associated to the ISBN: 9781464158933. The full step-by-step solution to problem: 9.39 from chapter: 9 was answered by , our top Statistics solution expert on 01/03/18, 09:20PM. The answer to “DFW rates. One measure of student success for colleges and universities is the percent of admitted students who graduate. Studies indicate that a key issue in retaining students is their performance in so-called gateway courses. These are courses that serve as prerequisites for other key courses that are essential for student success. One measure of student performance in these courses is the DFW rate, the percent of students who receive grades of D, F, or W (withdraw). A major project was undertaken to improve the DFW rate in a gateway course at a large midwestern university. The course curriculum was revised to make it more relevant to the majors of the students taking the course, a small group of excellent teachers taught the course, technology (including clickers and online homework) was introduced, and student support outside the classroom was increased. The following table gives data on the DFW rates for the course over three years.17 In Year 1, the traditional course was given; in Year 2, a few changes were introduced; and in Year 3, the course was substantially revised. Year DFW rate Number of students taking course Year 1 42.3% 2408 Year 2 24.9% 2325 Year 3 19.9% 2126 Do you think that the changes in this gateway course had an impact on the DFW rate? Write a report giving your answer to this question. Support your answer by an analysis of the data.” is broken down into a number of easy to follow steps, and 235 words. This full solution covers the following key subjects: . This expansive textbook survival guide covers 17 chapters, and 1719 solutions.

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