In July of 2013, Australians were asked if they thought unemployment would increase, and 47% thought that it would increase. In November of 2013, they were asked again. At that time 214 out of 500 said that they thought unemployment would increase. At the 1% level, is there enough evidence to show that the proportion of Australians in November 2013 who believe unemployment would increase is lower than the proportion who felt it would increase in July 2013?
In July of 2013, Australians were asked if they thought unemployment would increase, and 47% thought that it would increase. In November of 2013, they were asked again. At that time 214 out of 500 said that they thought unemployment would increase. At the 1% level, is there enough evidence to show that the proportion of Australians in November 2013 who believe unemployment would increase is lower than the proportion who felt it would increase in July 2013?
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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In July of 2013, Australians were asked if they thought unemployment would increase, and 47% thought that it would increase. In November of 2013, they were asked again. At that time 214 out of 500 said that they thought unemployment would increase. At the 1% level, is there enough evidence to show that the proportion of Australians in November 2013 who believe unemployment would increase is lower than the proportion who felt it would increase in July 2013?
Transcribed Image Text:The conditions are met to use a Select an answer
T: TEST STATISTIC
The symbol and value of the random variable on this problem are as follows:
Leave this answer as a fraction.
Z=
?v=
The formula set up of the test statistic is as follows.:
(Leave any values that were given as fractions as fractions)
p - p
Z=
p(1-p)
n
=
Final answer for the test statistic from technology.
Round to 2 decimal places:
O: OBTAIN THE P-VALUE
P-value =
√
Report to 4 decimal places.
It is possible when rounded that a p-value is 0.0000
M: MAKE A DECISION
(1-
Since the p-value ? ✓
we Select an answer
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