the 10% significance level? 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
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Transcribed Image Text:QUESTION 27
A researcher wants to see how men and
women differ in their reaction to a headache
medicine with respect to drowsiness. In
testing the hypotheses
•H:P1-P2<0.10 ,
the following statistics were obtained:
and x-115, where and , represent
the number of patients in the two samples
n3 = 400, x1=208, nz=250
X2
(men vs. women) who reported to have
drowsiness as a result of taking headache
medicine. What conclusion can we draw at
the 10% significance level?
The critical value is:
A. 1.96
B. 1.28
C.-1.28
D. -1.96.

Transcribed Image Text:QUESTION 24
Random
samples
from
two
normal
populations produced the following statistics:
s7=32. n, =10, n,=15
and , Is there enough evidence at
the 5% significance level to infer that the
variance of Population 1 is larger than the
variance of Population 2?The critical value is:
A. 2.65
B. 2.77
C. 2.70
D.2.575
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