Homework Help is Here – Start Your Trial Now!
Math
Statistics
A random sample of nine students was selected to test for the effectiveness of a special course designed to improve memory. The following table gives the scores of a memory test given to these students before and after this course. Before 77 76 35 74 71 52 60 55 40 After 41 67 77 72 48 44 55 79 71 Assume that the population of paired differences has a normal distribution. a. Construct a 99.8% confidence interval for the mean Ha of population paired differences, where a paired difference is defined as the difference between the memory test scores of a student before and after attending this course. Round your answers to one decimal place. The 99.8% confidence interval for the mean Ha of population paired differences is i to eTextbook and Media b. Test at the 2.5% significance level whether this course makes any statistically significant improvement in the memory of all students. Find the value of the test statistic t. Round your answer to one decimal place. The value of the test statistic t is i

A random sample of nine students was selected to test for the effectiveness of a special course designed to improve memory. The following table gives the scores of a memory test given to these students before and after this course. Before 77 76 35 74 71 52 60 55 40 After 41 67 77 72 48 44 55 79 71 Assume that the population of paired differences has a normal distribution. a. Construct a 99.8% confidence interval for the mean Ha of population paired differences, where a paired difference is defined as the difference between the memory test scores of a student before and after attending this course. Round your answers to one decimal place. The 99.8% confidence interval for the mean Ha of population paired differences is i to eTextbook and Media b. Test at the 2.5% significance level whether this course makes any statistically significant improvement in the memory of all students. Find the value of the test statistic t. Round your answer to one decimal place. The value of the test statistic t is i

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

Hello,

I'm stuck on how to solve this one

A random sample of nine students was selected to test for the effectiveness of a special course designed to improve memory. The following table gives the scores of a memory test given to these students before and after this course. Before 77 76 35 74 71 52 60 55 40 After 41 67 77 72 48 44 55 79 71 Assume that the population of paired differences has a normal distribution. a. Construct a 99.8% confidence interval for the mean Ha of population paired differences, where a paired difference is defined as the difference between the memory test scores of a student before and after attending this course. Round your answers to one decimal place. The 99.8% confidence interval for the mean Ha of population paired differences is i to eTextbook and Media b. Test at the 2.5% significance level whether this course makes any statistically significant improvement in the memory of all students. Find the value of the test statistic t. Round your answer to one decimal place. The value of the test statistic t is i
Transcribed Image Text:A random sample of nine students was selected to test for the effectiveness of a special course designed to improve memory. The following table gives the scores of a memory test given to these students before and after this course. Before 77 76 35 74 71 52 60 55 40 After 41 67 77 72 48 44 55 79 71 Assume that the population of paired differences has a normal distribution. a. Construct a 99.8% confidence interval for the mean Ha of population paired differences, where a paired difference is defined as the difference between the memory test scores of a student before and after attending this course. Round your answers to one decimal place. The 99.8% confidence interval for the mean Ha of population paired differences is i to eTextbook and Media b. Test at the 2.5% significance level whether this course makes any statistically significant improvement in the memory of all students. Find the value of the test statistic t. Round your answer to one decimal place. The value of the test statistic t is i
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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