Suppose we have two groups of students, those who go for tutoring help and those who do not. The following is the mathematics test results from these two groups of students. with tutor help without tutor help 75 81 66 67 哥 80 65 82 76 73 59 64 88 51 47 58 52 93 60 (a) Test for the equality of variances of mathematics test results from the students with and without tutoring help at a = 0.1 (b) Test whether there is difference in the mean mathematics test results for the students with and without tutoring help at 2% significance level. (c) Find the 95% confidence interval for the difference between two groups' average mathematics test results.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
Suppose we have two groups of students, those who go for tutoring help and those who do not. The
following is the mathematics test results from these two groups of students.
with tutor help
without tutor help
66
67
80
65
82
76
73
59
64
75
81
51
47
58
52
93
60
88
(a) Test for the equality of variances of mathematics test results from the students with and without
tutoring help at a = 0.1
(b) Test whether there is difference in the mean mathematics test results for the students with and
without tutoring help at 2% significance level.
(c) Find the 95% confidence interval for the difference between two groups' average mathematics test
results.
Transcribed Image Text:Suppose we have two groups of students, those who go for tutoring help and those who do not. The following is the mathematics test results from these two groups of students. with tutor help without tutor help 66 67 80 65 82 76 73 59 64 75 81 51 47 58 52 93 60 88 (a) Test for the equality of variances of mathematics test results from the students with and without tutoring help at a = 0.1 (b) Test whether there is difference in the mean mathematics test results for the students with and without tutoring help at 2% significance level. (c) Find the 95% confidence interval for the difference between two groups' average mathematics test results.
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

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