An experiment samples two independent populations X and Y. • X is sampled 15 times yielding sample mean •Y is sampled 28 times yielding sample mean j = 26.5 and sample std dev s, = 8.9. Do a one-tailed, two-sample t-test against Ho: Hx -HY 23 and sample std dev s, = 6.6. %3D 1. In this case, the sample mean difference is 23-26.5 %3D The alternative hypothesis for the one-tailed test in this case is HA: HX -HY v1.

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
Topic Video
Question
An experiment samples two independent populations X and Y.
• X is sampled 15 times yielding sample mean
•Y is sampled 28 times yielding sample meang = 26.5 and sample std dev s, = 8.9.
Do a one-tailed, two-sample t-test against
Ho: Hx - Hy = 1.
23 and sample std dev 8
6.6.
%3D
%3D
%3D
%3D
In this case, the sample mean difference is
I-j=23-26.5
%3D
The alternative hypothesis for the one-tailed test in this case is
HA: Px - HY
v 1.
The sample std dev of (X-Y) is
%3D
The test statistic has distribution
Your answer must be an integer. Use the R-window as a calculator to compute.
In this case, the test statistic has value
t =
This has p-value
Transcribed Image Text:An experiment samples two independent populations X and Y. • X is sampled 15 times yielding sample mean •Y is sampled 28 times yielding sample meang = 26.5 and sample std dev s, = 8.9. Do a one-tailed, two-sample t-test against Ho: Hx - Hy = 1. 23 and sample std dev 8 6.6. %3D %3D %3D %3D In this case, the sample mean difference is I-j=23-26.5 %3D The alternative hypothesis for the one-tailed test in this case is HA: Px - HY v 1. The sample std dev of (X-Y) is %3D The test statistic has distribution Your answer must be an integer. Use the R-window as a calculator to compute. In this case, the test statistic has value t = This has p-value
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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