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...

60.2K

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

Other questions asked by students

Q

A digital watch draws 0.230 mA of current provided by a battery whose net reaction is: HgO(s)...

Chemistry
Q

Write an Assembley Language.Given a number x, determine whether the given number is Armstrong number or...

Programming
Q

The phase difference between current and voltage in an AC circuit is radian If the...

Physics
Q

Consider the following scenario From 1990 to 1999 the amount spent to purchase a car...

Basic Math
Q

K Find the indicated z score The graph depicts the standard normal distribution with mean...

Statistics
Q

Assume that the U S Mint manufactures dollar coins so that the standard deviation is...

Statistics
Q

To offer scholarships to children of employees a company invests 13 000 at the end...

Algebra
Q

In an inverse variation x 6 y a What is the equation that represents the...

Algebra
Q

to find and speak to the focused advertisements are more effective with consumers

Accounting
Q

Starlight Company has an opportunity to produce and sell a revolutionary new smoke detector for...

Accounting
Q

What is the Quick Ratio for Nike based on the following The following financial information...

Accounting
Q

Cost of Units Transferred Out and Ending Work in Process The costs per equivalent unit...

Accounting