Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. a statistics professor claims that the average sco

A statistics professor claims that the average score on the Final Exam was 83. A group...

60.1K

Verified Solution

Question

Statistics

A statistics professor claims that the average score on theFinal Exam was 83. A group of students believes that the averagegrade was lower than that. They wish to test the professor's claimat the  α=0.05α=0.05 level of significance. (Roundyour results to three decimal places)

Which would be correct hypotheses for this test?

  • H0:μ=83H0:μ=83, H1:μ≠83H1:μ≠83
  • H0:μ≠83H0:μ≠83, H1:μ=83H1:μ=83
  • H0:μ=83H0:μ=83, H1:μ>83H1:μ>83
  • H0:μ=83H0:μ=83, H1:μ<83H1:μ<83
  • H0:μ<83H0:μ<83, H1:μ=83H1:μ=83



A random sample of statistics students had the Final Exam scoresshown below. Assuming that the test scores are normallydistributed, use this sample to find the test statistic:

Final Exam scores

978210277
54948092
98836785
87885355



test statistic:



Give the P-value:



Which is the correct result:

  • Reject the Null Hypothesis
  • Do not Reject the Null Hypothesis



Which would be the appropriate conclusion?

  • There is not significant evidence to suggest that the averageFinal Exam score was less than 83
  • There is significant evidence to suggest that the average Finalexam score was less than 83

Answer & Explanation Solved by verified expert
4.3 Ratings (549 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

1.What are some of the common problems users encounter when trying to compare financial statements of...

Accounting
Q

an example of phagocytosis clathrin coated pit formation Oregulated secretion constitutive secretion epithel Lysosome Endosome...

Biology
Q

56 The force of interaction between the semicircular ring and the particle placed at it...

Physics
Q

Brent Pickett borrowed 4000 from his brother Dave He agreed to repay the money at...

Basic Math
Q

Convert the angle in radians to degrees 4 9 radians

Calculus
Q

:or each transaction, (a) determine whether the transaction appears on the statement of...

Accounting
Q

Passive ActivitiesFor each of the following, state whether the individual might be a real estate...

Accounting
Q

Accounting objectives 1....

Accounting
Q

Cual es el total de stockholders' equity basado en la siguiente informacion? Common Stock Excess...

Accounting
Q

Francum Company has the following data: direct labor $247,000, direct materials used $196,000, total manufacturing...

Accounting
Q

J. Given the following data, calculate the amount of goodwill impairment under IFRS: $1,000 $7,000...

Accounting
Q

Please answer this question by going looking up adidas 10k. company: adidas Obtain the...

Accounting