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: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Basic Math
1.2K views

For the following find: (Show detailed working) 1) general solution of the associated homogns DE 2)  form of...

Physics
1.2K views

Addition of Water to a Salt Solution Pure water is added drop by drop to...

Physics
1.2K views

A 10 kg block is pulled along a frictionless surface in the form of an...

Basic Math
1.2K views

The salaries of six bank employees are $37,000, $38,500, $35,000, $37,000,$45,000, $40,000, and $75,000.Which statement...

Calculus
1.2K views

1 10 A curve is given by the parametric equations below A Graph x vs...

Calculus
1.2K views

2 Calculate Brady s yards per attempt YPA YPA Total Passing Yards Total Passing Attempts...

Accounting
1.2K views

List and explain the most important skills required of forensic accountants. How do these apply...

Accounting
1.2K views

Which of the following statements about accrual and cash basis accounting is most accurate? a....

Accounting
1.2K views

fill in the blanks value 12.00 points Spotter Corporation reported the...

Accounting
1.2K views

You are auditing a manufacturing company that produces diesel technology to support the automotive industry....

Accounting
1.2K views

P 8-20: Karsten Mills Karsten Mills is one of the premier carpet manufacturers in...

Accounting
1.2K views

1- How much was Target corporation's long-term debt at February 1, 2020? 2- Compute Target...