A University wants to implement a support course model to help college algebra students do better in their classes. The university will try the model on a class of 35 students to determine how well it works. The average grade of the students with the support course is 71% with a standard deviation of 20%. The university compares these students to the the other 180 college algebra students with no support course. The average grade of the college algebra students with no support course is 69% with a standard deviation of 18%. College algebra grades are normally distributed. At the 5% significance level determine if the average grade with support is greater than the courses that do not have a support course. Use the support course class as population 1. Give the hypotheses. Null: There is no difference in the average grade with those that have a support course and those that do not.
A University wants to implement a support course model to help college algebra students do better in their classes. The university will try the model on a class of 35 students to determine how well it works. The average grade of the students with the support course is 71% with a standard deviation of 20%. The university compares these students to the the other 180 college algebra students with no support course. The average grade of the college algebra students with no support course is 69% with a standard deviation of 18%. College algebra grades are normally distributed. At the 5% significance level determine if the average grade with support is greater than the courses that do not have a support course. Use the support course class as population 1. Give the hypotheses. Null: There is no difference in the average grade with those that have a support course and those that do not.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question 16: give the conclusion
Transcribed Image Text:A university wants to implement a support course model to help college
algebra students do better in their classes. The university will try the
model on a class of 35 students to determine how well it works. The
average grade of the students with the support course is 71% with a
standard deviation of 20%. The university compares these students to
the the other 180 college algebra students with no support course. The
average grade of the college algebra students with no support course is
69% with a standard deviation of 18%. College algebra grades are
normally distributed. At the 5% significance level determine if the
average grade with support is greater than the courses that do not have a
support course. Use the support course class as population 1.
Give the hypotheses.
Null: There is no difference in the average grade with those that have a support
course and those that do not.
Alternative: The average grade of students with a support class will be higher.
O Null: There is no difference in the average grade with those that have a support
course and those that do not.
Alternative: The average grade of students with a support class will be lower.
O Null: There is no difference in the average grade with those that have a support
course and those that do not.
Alternative: The average grade of students with a support course is not equal
to those without a support course.
No answer text provided.
Transcribed Image Text:Give the conclusion.
Reject the null since the test statistic is in the rejection region.
Fail to reject the null since the test statistic is not in the rejection region.
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