claim using a hypothesis test. the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo is test? - P₁ P₂ H₁: Py>P₂ Ho: P₁ = P₂ H₁: P₁ P₂ y the test statistic. 0 nd to two decimal places as needed.) OB. Ho: P₁ P₂ H₁: Pg #P₂ OE Ho: P₁ P₂ H₁: Py =P₂ OC. Ho H₂ OF H H₂
claim using a hypothesis test. the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo is test? - P₁ P₂ H₁: Py>P₂ Ho: P₁ = P₂ H₁: P₁ P₂ y the test statistic. 0 nd to two decimal places as needed.) OB. Ho: P₁ P₂ H₁: Pg #P₂ OE Ho: P₁ P₂ H₁: Py =P₂ OC. Ho H₂ OF H H₂
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
![1
K
In a study of treatments for very painful "cluster" headaches, 149 patients were treated with oxygen and 157 other patients were given a placebo consisting of ordinary air. Among the 149 patients in
the oxygen treatment group, 117 were free from headaches 15 minutes after treatment. Among the 157 patients given the placebo, 38 were free from headaches 15 minutes after treatment. Use a
0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below.
a
F1
Q
olve this View an example Get more help
A
ion
1
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo. What are the null and alternative hypotheses for the
hypothesis test?
N
@
A. Ho: P₁ P2
H₁: Py>P₂
2
OD. Ho: P1 P2
H₁: P₁ P2
Identify the test statistic.
Z=
(Round to two decimal places as needed.).
30
F2
W
S
X
command
#
3
80
F3
E
D
$
4
C
Q
FA
R
F
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5
V
e
FS
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OB. Ho: P₁ P₂
P₂
H₁: P₁
6
O E. Ho: P₁ P₂
H₁: P₁ P₂
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9
F6
Y
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NX
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F7
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*
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O
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OC. Ho: P₁ P₂
H₁: P₁ P₂
OF. Ho: P₁ SP₂
H₁: P₁ P₂
command
F10
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Clear all
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F11
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Transcribed Image Text:1
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In a study of treatments for very painful "cluster" headaches, 149 patients were treated with oxygen and 157 other patients were given a placebo consisting of ordinary air. Among the 149 patients in
the oxygen treatment group, 117 were free from headaches 15 minutes after treatment. Among the 157 patients given the placebo, 38 were free from headaches 15 minutes after treatment. Use a
0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below.
a
F1
Q
olve this View an example Get more help
A
ion
1
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo. What are the null and alternative hypotheses for the
hypothesis test?
N
@
A. Ho: P₁ P2
H₁: Py>P₂
2
OD. Ho: P1 P2
H₁: P₁ P2
Identify the test statistic.
Z=
(Round to two decimal places as needed.).
30
F2
W
S
X
command
#
3
80
F3
E
D
$
4
C
Q
FA
R
F
%
5
V
e
FS
T
G
OB. Ho: P₁ P₂
P₂
H₁: P₁
6
O E. Ho: P₁ P₂
H₁: P₁ P₂
MacBook Air
B
9
F6
Y
H
&
NX
7
N
F7
U
*
8
J
DII
FB
I
M
(
9
K
F9
O
<
I
H
)
O
L
OC. Ho: P₁ P₂
H₁: P₁ P₂
OF. Ho: P₁ SP₂
H₁: P₁ P₂
command
F10
P
V
:
Clear all
;
I
option
di
F11
{
[
?
C..
+
=
1
Check answer
44
}
]
delete
1
return
A
shift
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