Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. 4. the university is interested in determining if

4. The university is interested in determining if the proportion of graduates obtaining a first-class degree...

70.2K

Verified Solution

Question

Statistics

4. The university is interested in determining if the proportionof graduates obtaining a first-class degree has changed from 2016to 2017. Out of 2800 graduates in 2016, 560 obtained a first classdegree. In 2017, 805 graduates out of 3500 obtained a first classdegree.

  1. (a) Write down the method of moments estimates for theproportion of first-class degrees
    in 2016 and 2017, pˆ2016 and pˆ2017.

  2. (b) Write down appropriate null and alternative hypotheses forthis test.

  3. (c) What assumptions are required to conduct your hypothesistest from (b), does this data satisfy them?

  4. (d) Calculate a 90% confidence interval for the difference inthe proportion of first-class degrees awarded.

  5. (e) Using your answer to part (d), or otherwise, test yourhypothesis from (b) at the 10% level. You should clearly state theconclusion of your test.

Answer & Explanation Solved by verified expert
4.1 Ratings (553 Votes)
    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: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Henry is in psychotherapy to work through his repressed childhood feelings about his mother and stepfather. The...

Psychology
Q

Cytochalasin D is a drug that prevents actin polymerization A cell treated with cytochalasin D...

Biology
Q

40 The electric field components in the figure below are E 800x N C E...

Physics
Q

Provide your answer below Drag the black dot to shift your graph in the desired...

Geometry
Q

Consider the expression ?640, which simplifies to an expression in the form A?B. Simplify thisexpression...

Basic Math
Q

devi on in the pressure required to open a certain valve is known to be...

Statistics
Q

. The Pointer Appliance Company is investigating the additional of a new and improved pulsating...

Accounting
Q

d None of the above Michael Smith purchased a vehicle for his business on 1...

Accounting
Q

Maejung Company had a transaction that caused a $100,000 increase in both assets and stockholders...

Accounting
Q

Prepare journal entries to record each of the following transactions. The company records purchases using...

Accounting
Q

The following are selected 2025 transactions of Oriole Corporation. Sept. 1 Purchased inventory from Encino...

Accounting
Q

Which of the following is not a type of analyses performed during the third step...

Accounting