Homework Help is Here – Start Your Trial Now!
Math
Statistics
2. Test at the 1% level of significance the hypothesis that the A version of the test is easier than the B version (even though the questions are the same). p-value (round to four decimal places) = Conclusion (write "R" for reject Ho, and "F" for fail to reject Ho):

2. Test at the 1% level of significance the hypothesis that the A version of the test is easier than the B version (even though the questions are the same). p-value (round to four decimal places) = Conclusion (write "R" for reject Ho, and "F" for fail to reject Ho):

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Children in two elementary school classrooms were given two versions of the same test, but with the order of questions arranged from easier to more difficult in Version A and in reverse order in Version B. Randomly selected students from each class were given Version A and the rest Version B. The results are shown in the table. nx S E Version A 31 83 4.6 Version B 32 78 4.3 1. Construct the 90% confidence interval for the difference in the means of the populations of all children taking Version A of such a test and of all children taking Version B of such a test. Lower endpoint (round to one decimal place) 3.2 = Upper endpoint (round to one decimal place) = 6.8 2. Test at the 1% level of significance the hypothesis that the A version of the test is easier than the B version (even though the questions are the same). p-value (round to four decimal places) = Conclusion (write "R" for reject Ho, and "F" for fail to reject Ho):
Transcribed Image Text:Children in two elementary school classrooms were given two versions of the same test, but with the order of questions arranged from easier to more difficult in Version A and in reverse order in Version B. Randomly selected students from each class were given Version A and the rest Version B. The results are shown in the table. nx S E Version A 31 83 4.6 Version B 32 78 4.3 1. Construct the 90% confidence interval for the difference in the means of the populations of all children taking Version A of such a test and of all children taking Version B of such a test. Lower endpoint (round to one decimal place) 3.2 = Upper endpoint (round to one decimal place) = 6.8 2. Test at the 1% level of significance the hypothesis that the A version of the test is easier than the B version (even though the questions are the same). p-value (round to four decimal places) = Conclusion (write "R" for reject Ho, and "F" for fail to reject Ho):
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS