Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. an article presents an analysis of the profit of i

An article presents an analysis of the profit of international construction projects. In a sample of...

50.1K

Verified Solution

Question

Statistics

An article presents an analysis of the profit of internationalconstruction projects. In a sample of 126 projects, the averageprofit margin (in percent) was 8.27 with a standard deviation of16.33. A test is made of H0 : μ ≥ 10versus H1 : μ < 10.

- Find the P-value. Round the answer to four decimalplaces.

This is what i have, but for some reason I'm being told it iswrong.

(8.27 - 10 ) / (16.33 / sqrt 126) = -1.879 - -> -1.88 -- >Z = .0301

- The P-value calculated for testingH0 : µ ≥ 10 versusH1 : µ < 10 is not a smallprobability, hence it is plausible that the mean profit margin is10% or more. False.

Answer & Explanation Solved by verified expert
3.6 Ratings (357 Votes)
Yes it is wrong because population standard deviation    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Finance
1.2K views

How might the capital budgeting activities of a nonprofit organization be different from the capital spending...

Psychology
1.2K views

What does human relations mean to you in both personal and professional setting?

Mechanical Engineering
1.2K views

• Maintenance Management, Practices, Computerized Systems and future advancements. please could you provide me with full description...

Electrical Engineering
1.2K views

What is electroporation? What are the two types of electroporation? Give two applications for each type....

Advance Math
1.2K views

With regard to multi variable calculus can some explain vector fields in detail. Thank you. Provide...

Physics
1.2K views

Light from a point source in air falls on a spherical glass surface n 1...

Basic Math
1.2K views

The surface area of a sphere, S isequal to 4r, where is the radius ofthe...

Statistics
1.2K views

A continuous variable is a variable can assume O any value over one or more...

Accounting
1.2K views

Entries and Schedules for Unfinished Jobs and Completed Jobs Amount Descriptions Joumal...

Accounting
1.2K views

For the payroll project, you will complete each of the following sections, which has a...

Accounting
1.2K views

Which one of the following t-statistics should have the smallest p-value? a) 3.69 b) -1.36...

Finance
1.2K views

Your parents retirement account pays a 4.5% APR compounded monthly. What size nest egg do...