a. What is the value of the​ pooled-variance tSTAT test statistic for testing H0: μ1=μ2​?   tSTAT= ​(Round to two decimal places as​ needed.)   b. In finding the critical​ value, how many degrees of freedom are​ there?     degrees of freedom= ​(Simplify your​ answer.)   c. Using a significance level of α=0.005​, what is the critical value for a​ one-tail test of the hypothesis H0: μ1≤ μ2 against the alternative H1: μ1>μ2?   The critical value is=

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
Assume that you have a sample of
n1=8​,
with the sample mean
X1=49​,
and a sample standard deviation of
S1=6,
and you have an independent sample of
n2=12
from another population with a sample mean of
X2=36
and the sample standard deviation
S2=5.
 
Complete parts​ (a) through​ (d) below.
a. What is the value of the​ pooled-variance
tSTAT
test statistic for testing
H0: μ1=μ2​?
 
tSTAT=
​(Round to two decimal places as​ needed.)
 
b. In finding the critical​ value, how many degrees of freedom are​ there?
 
 
degrees of freedom=
​(Simplify your​ answer.)
 
c. Using a significance level of
α=0.005​,
what is the critical value for a​ one-tail test of the hypothesis
H0: μ1≤ μ2
against the alternative H1: μ1>μ2?
 
The critical value is=
 
 
Expert Solution
trending now

Trending now

This is a popular 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
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