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A random sample of 100 people was taken

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A random sample of 100 people was taken. In the sample 85% favored
Candidate Green. We are interested in determining whether or not the proportion of the population in favor of Green is significantly more than 80%.

09: The correct set of hypotheses for this problem is
A) H0:p = 0.85 and HA: p > 0.85
B) H0:p > 0.80 and HA:p = 0.80
C) H0:p = 0.80 and HA: p > 0.80
D) H0:p = 0.80 and HA: p ≥ 0.80
E) H0:p ≠ 0.80 and HA: p > 0.80

10: Find the test statistic.
A) 0.80
B) -1.25
C) 1.25
D) 2.00
E) none of the above

11: Find the p-value.
A) 0.1071
B) 0.8929
C) 0.8944
D) 0.1056
E) none of the above

12: At the 5% level of significance, can we conclude that the proportion of the population in favor of Green
A) is significantly greater than 80%
B) is not significantly greater than 80%
C) is significantly greater than 85%
D) is not significantly greater than 85%
E) none of the above

 
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