One measure of student success for colleges and universities is the percent of a
ID: 3323675 • Letter: O
Question
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. 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.
H0: The gateway course did not have an impact on DFW rate.
Ha: The gateway course had an impact on DFW rate.
State the 2 statistic, degrees of freedom, and the P-value. (Round your answer for 2 to one decimal place and your P-value to four decimal places.)
Explanation / Answer
assuming this is data
H0: The gateway course did not have an impact on DFW rate.
Ha: The gateway course had an impact on DFW rate.
The P-Value is < 0.00001. The result is significant at p < 0.05.
We have sufficient evidence to conclude that the gateway course had an impact on DFW rate.
Year DFW Rate Number of Students Taking Course Year 1 42.8% 2408 Year 2 24.3% 2325 Year 3 19.5% 2126Related Questions
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