Homework Help is Here – Start Your Trial Now!
Math
Statistics
A random sample of 15 subjects was asked to perform a given task. The time and seconds it took each of them to complete the test as recorded below.  39,37,35,40,39,27,29,50,33,38,39,36,49, 25,46 If we assume the completion times are normally distributed, find a 99% confidence interval for the true mean completion time for this desk. Give the lower limit and upper limit of the 99% confidence interval.

A random sample of 15 subjects was asked to perform a given task. The time and seconds it took each of them to complete the test as recorded below.  39,37,35,40,39,27,29,50,33,38,39,36,49, 25,46 If we assume the completion times are normally distributed, find a 99% confidence interval for the true mean completion time for this desk. Give the lower limit and upper limit of the 99% confidence interval.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

A random sample of 15 subjects was asked to perform a given task. The time and seconds it took each of them to complete the test as recorded below. 
39,37,35,40,39,27,29,50,33,38,39,36,49, 25,46

If we assume the completion times are normally distributed, find a 99% confidence interval for the true mean completion time for this desk. Give the lower limit and upper limit of the 99% confidence interval.

 

Expert Solution
Step 1

The question is about confidence interval

Given :

Randomly selected no. of subjects ( n ) = 15

Confidence level = 0.99

Data :  39,37,35,40,39,27,29,50,33,38,39,36,49, 25,46

 

To find :

99 % CI for the true mean completion time for this desk

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS