(a) The table below shows the results of two variables (A and B). We would like to know if variable A was related to variable B or if these 2 variables are independent. Use chi-square to test whether variable A and variable B are independent. Test at the following level of significance (? % ) (i) 1% (ii) 5% 59 44 51 41 51 55 61 59 66 72 72 71

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

(a) The table below shows the results of two variables (A and B). We would like to know if variable A  was related to variable B or if these 2 variables are independent. Use chi-square to test whether variable A and variable B are independent. Test at the following level of significance (? % ) (i) 1%                           (ii)  5% 

59 44 51
41 51 55
61 59 66
72 72 71

(b) Let X be the Random Variable representing the number of boys in families with 3 children. Find the mean. 

Expert Solution
steps

Step by step

Solved in 3 steps with 34 images

Blurred answer
Similar 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