Hours Spent Studying 0.5 1 2.5 4 5 5.5 6 Midterm Grades 63 69 78 81 84 90 99   Step 1, Calculate the correlation coefficient, r. Round your answer to six decimal places.   Step 2, Calculate the coefficient of determination, r^2. Round 3 decimal places.   Step 3, Determine if "r" is significant at the 0.01, 0.05 level... yes or no?

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

The following data gives the number of hours 7 students spent studying and their corresponding grades on their midterm exams.

Hours Spent Studying 0.5 1 2.5 4 5 5.5 6
Midterm Grades 63 69 78 81 84 90 99

 

Step 1, Calculate the correlation coefficient, r. Round your answer to six decimal places.
 
Step 2, Calculate the coefficient of determination, r^2. Round 3 decimal places.
 
Step 3, Determine if "r" is significant at the 0.01, 0.05 level... yes or no? 
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 3 images

Blurred answer
Similar questions
  • SEE MORE 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