Q2. Observation from two random and independent samples, drawn from population 1 and 2, are given below. Use the Wilcoxon rank sum test to determine whether population I is shifted to the left of population 2. Sample 1 Sample 2 (1) State the null and alternative hypotheses to be tested. 33 61 20 19 40 26 36 65 25 35 (2) Rank the combined sample from smiallest to largest. Calculate T,. T (3) What is the rejection at a = 0.05? (4) State your conclusion.

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

please solve it in details with clear steps and explanation
 
Q2. Observation from two random and independent samples, drawn from population 1 and 2, are
given below. Use the Wilcoxon rank sum test to determine whether population 1 is shifted to the
left of population 2.
Sample 1
Sample 2
(1) State the null and alternative hypotheses to be tested.
33
61
20
19
40
26
36
65
25
35
(2) Rank the combined sample from sniallest to largest. Calculate T,, T,
(3) What is the rejection at a = 0.05?
(4) State your conclusion.
Q3. Based on Q2. Answer the following:
(a) Calculate Spearman's rank correlation coefficient.
(b) Do the data present sufficient evidence to indicate a correlation between sample 1 and 2?
Use a = 0.05.
Transcribed Image Text:Q2. Observation from two random and independent samples, drawn from population 1 and 2, are given below. Use the Wilcoxon rank sum test to determine whether population 1 is shifted to the left of population 2. Sample 1 Sample 2 (1) State the null and alternative hypotheses to be tested. 33 61 20 19 40 26 36 65 25 35 (2) Rank the combined sample from sniallest to largest. Calculate T,, T, (3) What is the rejection at a = 0.05? (4) State your conclusion. Q3. Based on Q2. Answer the following: (a) Calculate Spearman's rank correlation coefficient. (b) Do the data present sufficient evidence to indicate a correlation between sample 1 and 2? Use a = 0.05.
Expert Solution
steps

Step by step

Solved in 2 steps

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