Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. a random sample of 20 subjects was asked to perfor

A random sample of 20 subjects was asked to perform a given task. The time in...

60.1K

Verified Solution

Question

Statistics

A random sample of 20 subjects was asked to perform a giventask. The time in seconds it took each of them to complete the taskis recorded below:

49, 26, 46, 40, 37, 39, 33, 47, 31, 35, 39, 43, 28, 38, 41, 29,38, 34, 45, 41

If we assume that the completion times are normally distributed,find a 95% confidence interval for the true mean completion timefor this task. Then complete the table below.

Carry your intermediate computations to at least three decimalplaces. Round your answers to one decimal place.

What is the lower limit of the confidence interval?

What is the upper limit of the confidence interval?

Answer & Explanation Solved by verified expert
3.7 Ratings (513 Votes)
We have for given data Sample mean 3795 Sample    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

Statistics
1.2K views

Select the statement that is FALSE O The interquartile range is always equal to or...

Biology
1.2K views

Discuss the actions taken by prokaryotes when energy substrate conditions and availability concentrations are: 1. glucose...

Biology
1.2K views

Please help with finding where the veins and arteries come from and enters into You...

Physics
1.2K views

Paul and Ivan are riding a tandem bike together. They're moving at a speed of...

Physics
1.2K views

1 The standard enthalpy of formation of NH3 is 46 0 kJ mol If the...

Statistics
1.2K views

In a survey 1000 adults in a certain country were asked how many hours they...

Accounting
1.2K views

What lessons can be learned from the subprime mortgage meltdown? Could a similar crisis...

Accounting
1.2K views

This project covers general partnership basis issues including computation of partners' adjusted basis,...

Accounting
1.2K views

Mary Jarvis is a single individual who is working on filing her tax return for...

Accounting
1.2K views

At the time of Andrew's death, he was a joint tenant with Harry (his brother)...

Accounting
1.2K views

Sales of Blair Inc. have been on a steady decline for the last 12 months....

Finance
1.2K views

Dahlia Enterprises needs someone to supply it with 130,000 cartons of machine screws per year...