Exam (elaborations)
MATH 110 MATH 110 MODULE 7 EXAM. | PORTAGE LEARNING (MATH110)
- Course
- Institution
MATH 110 MODULE 7 EXAM. | PORTAGE LEARNING
[Show more]
Seller
Follow
Rubricguru
Reviews received
Content preview
Module 7 ExamExam Page 1
a) 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.
Ho: u =
19000 H1: u
≠ 19000
Type I Error: Reject the null hypothesis saying the mean newspaper circulation in a
certain city is 19000 per day when the mean IS 19000 per day.
Type II Error: Accept the null hypothesis saying the mean newspaper circulation in a
certain city is 19000 per day when the mean it IS DIFFERENT than 19000 per day.
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.
Ho: u =
6000 H1: u
< 6000
Type I Error: Reject the null hypothesis saying a certain website had mean number of
6000 hits per month a year ago when the mean number of hit DID have 6000 hits per
month.
a) 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
This study source was downloaded by 100000829216747 from CourseHero.com on 03-28-2022 00:04:45 GMT -05:00
https://www.coursehero.com/file/32391145/Module-7-Examdocx/
, 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.
Exam Page 2
Suppose that we have a problem for which the null and alternative hypothesis are given
by:
H0:
μ=1020.
H1:μ<
1020.
Is this a right-tailed test, left-tailed test, or two-tailed test. Find the z value based on a
level of significance of .04.
This study source was downloaded by 100000829216747 from CourseHero.com on 03-28-2022 00:04:45 GMT -05:00
https://www.coursehero.com/file/32391145/Module-7-Examdocx/
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Rubricguru. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now