MATH 110 Module 7 Exam Questions and Answers- Portage Learning
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Define the null and alternative hypothesis for the following. Also, explain what it would
mean to make a Type I error and explain what it would mean to make a Type II error.
The newspaper in a certain city had a circulation of 19,000 per day in 2010. You
believe that the newspaper’s circulation is different than 19,000 today.
a) H0: μ=19,000.
H1:μ≠19,000.
Type I error: Reject the null hypothesis that the circulation today is 19,000 when the
circulation today actually is 19,000.
Type II error: Do not reject the null hypothesis when the circulation is different than
19,000.
b) Define the null and alternative hypothesis for the following. Also, explain what it
would mean to make a Type I error and explain what it would mean to make a Type
II error.
A certain website had 6000 hits per month a year ago. You believe that the number of
hits per month is less than that today.
b) H0:
μ=6000.
H1:μ<6000.
Suppose that we have a problem for which the null and alternative hypothesis are
given by: H0: μ=959.
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Define the null and alternative hypothesis for the following. Also, explain what it would
mean to make a Type I error and explain what it would mean to make a Type II error.
The newspaper in a certain city had a circulation of 19,000 per day in 2010. You
believe that the newspaper’s circulation is different than 19,000 today.
a) H0: μ=19,000.
H1:μ≠19,000.
Type I error: Reject the null hypothesis that the circulation today is 19,000 when the
circulation today actually is 19,000.
Type II error: Do not reject the null hypothesis when the circulation is different than
19,000.
b) Define the null and alternative hypothesis for the following. Also, explain what it
would mean to make a Type I error and explain what it would mean to make a Type
II error.
A certain website had 6000 hits per month a year ago. You believe that the number of
hits per month is less than that today.
b) H0:
μ=6000.
H1:μ<6000.
Suppose that we have a problem for which the null and alternative hypothesis are
given by: H0: μ=959.
