Male Female n1= 12 n2= 8 M1= 99.17 M2 = 67.25 SS,= 62.73 SS2 = 38.297 df = n1 +n2 -2 = 12 +8-2 df = 18 Level a = 0.10 A) The null hypothesis ( Ho): 1-42 = 0 B) The alternative hypothesis ( H1) 1- H2 #0 C) The critical value : t = 2.101 D) The test statistics : Detail calculations
Male Female n1= 12 n2= 8 M1= 99.17 M2 = 67.25 SS,= 62.73 SS2 = 38.297 df = n1 +n2 -2 = 12 +8-2 df = 18 Level a = 0.10 A) The null hypothesis ( Ho): 1-42 = 0 B) The alternative hypothesis ( H1) 1- H2 #0 C) The critical value : t = 2.101 D) The test statistics : Detail calculations
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
100%
i need help finding the pooled variance , estimated standard error, and the t statistics
Transcribed Image Text:SS+SS, 70.22+78
%3D
148.22
Pooled variance: S,
=D8.23
18
This is just a sample!
dfi+dfz
11+7
s2
Estimated standard error: S (M2-M)=
s2
8.23
8.23
%3D
n1
12
8.
=Vo. 69 + 1.03 = V1.72 = 1.31(you will have different
answer)
12.5-15.75-0
-3.25
(M1-M2)-(H1-H2) .
S(M1-M2)
The t statistics: t =
= -2.48 (you will have
1.31
1.31
different answer)
The test statistics: Z, t = -2.48 (you will have different answer)
t.st
Transcribed Image Text:udeibeie
Styles
Male
Female
n1=12
n2= 8
M1= 99.17
M2 = 67.25
SS = 62.73
SS2 = 38.297
df = n1 +n2 - 2
= 12 +8-2
df = 18
Level a = 0.10
A) The null hypothesis ( Ho ): 4-42 = 0
B) The alternative hypothesis ( H1) :1 - H2 0
C) The critical value :
t = ± 2.101
D) The test statistics: Detail calculations
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