In a Harris? poll, adults were asked if they are in favor of abolishing the penn
ID: 3130246 • Letter: I
Question
In a Harris? poll, adults were asked if they are in favor of abolishing the penny. Among the? responses, 1233 answered? "no,"452 answered? "yes," and 377 had no opinion. What is the sample proportion of yes? responses, and what notation is used to represent? it?
Choose the correct answer below.
A.p=0.268. The symbol p is used to represent a sample proportion.
C.p=0.219.The symbol p is used to represent a sample proportion.
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(Needing help w/ another problem; please and thank you.)
Identify the type I error and the type II error that correspond to the given hypothesis.
The percentage of households with Internet access is less than 60%.
Identify the type I error. Choose the correct answer below.
A.Fail to reject the null hypothesis that the percentage of households with Internet with Internet access is equal to 60%when that percentage is actually less than 60%.
B.Fail to reject the null hypothesis that the percentage ofhouseholds with Internet with Internet access is less than 60% when the percentage is actually equal to 60%.
C.Reject the null hypothesis that the percentage of households with Internet with Internet access is less than 60% when that percentage is actually less than 60%.
D.Reject the null hypothesis that the percentage of households with Internet with Internet access is equal to 60% when that percentage is actually equal to 60%.
Explanation / Answer
The sample proportion of yes responses is:
P^=452/1233=0.37
C.Reject the null hypothesis that the percentage of households with Internet with Internet access is less than 60% when that percentage is actually less than 60%.- Type I error that is True H0 but reject it (False Positive).
B.Fail to reject the null hypothesis that the percentage of households with Internet with Internet access is less than 60% when the percentage is actually equal to 60%.Type II error that is False H0 but accept it.
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