MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Assume that adults were randomly selected for a poll. They were asked if they​ "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human​ embryos." Of those​ polled,
487
were in​ favor,
402
were​ opposed, and
115
were unsure. A politician claims that people​ don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the
115
subjects who said that they were​ unsure, and use a
0.10
significance level to test the claim that the proportion of subjects who respond in favor is equal to
0.5.
What does the result suggest about the​ politician's claim?
Identify the null and alternative hypotheses for this test. Choose the correct answer below.
 
 
A.
H0​:p≠0.5
H1​:p=0.5
 
B.
H0​:p=0.5
H1​:p<0.5
 
C.
H0​:p=0.5
H1​:p>0.5
 
D.H0​:p=0.5
H1​:p≠0.5
Identify the test statistic for this hypothesis test.
 
The test statistic for this hypothesis test is
__________
​(Round to two decimal places as​ needed.)
Identify the​ P-value for this hypothesis test.
 
The​ P-value for this hypothesis test is
_______
​(Round to three decimal places as​ needed.)
Identify the conclusion for this hypothesis test.
 
 
A. Reject H0. There is not sufficient evidence to warrant rejection of the claim that the responses are equivalent to a coin toss.
 
B.
RejectH0. There is sufficient evidence to warrant rejection of the claim that the responses are equivalent to a coin toss.
 
C.
Fail to reject H0. There is not
sufficient evidence to warrant rejection of the claim that the responses are equivalent to a coin toss.
 
D.
Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that the responses are equivalent to a coin toss.
 
What does the result suggest about the​ politician's claim?
 
A. the results suggests that the politician is wrong in claming that the responses are random guesses equivalent to a coin toss
B, the results suggest that the politician is correct in claiming that the responses are guesses equivalent to a coin toss
 
C. the results suggests that the polititicain is doing his best to accutatelty portray the feelings of the people
 
D. the results are inconclusive about weather the politician is correct of not 
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