Homework Help is Here – Start Your Trial Now!
Math
Statistics
Suppose you are given the following data involving weekly sales and test scores supposedly designed to pick out the "best" salespersons. 1. 2. 3. 4. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin Test Score (x) 4 2 3 6. 10 Weekly Sales (y)-in thou, of dolla $6 $12 $4 $8 $11 Calculate the correlation coefficient, r. Calculate the coefficient of determination, r; of non determination. Interpret them. Suppose you wish to test for the significance of r, the correlation coefficient, in problem 7a, given that n=5. Using the .01 level of significance, test the hypothesis that r is not different from 0 versusthe hypothesis that r is different from 0 (remember r can be between -1 and +1) in the population. Do you accept or reject the null hypothesis?

Suppose you are given the following data involving weekly sales and test scores supposedly designed to pick out the "best" salespersons. 1. 2. 3. 4. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin Test Score (x) 4 2 3 6. 10 Weekly Sales (y)-in thou, of dolla $6 $12 $4 $8 $11 Calculate the correlation coefficient, r. Calculate the coefficient of determination, r; of non determination. Interpret them. Suppose you wish to test for the significance of r, the correlation coefficient, in problem 7a, given that n=5. Using the .01 level of significance, test the hypothesis that r is not different from 0 versusthe hypothesis that r is different from 0 (remember r can be between -1 and +1) in the population. Do you accept or reject the null hypothesis?

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
Please explain with work I don’t understand it.
a. b. Suppose you are given the following data involving weekly sales and test scores supposedly designed to pick out the "best" salespersons. 1. 2. 3. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin Test Score (x) 4 2 3 6. 10 Weekly Sales (y)-in thou, of dollars $6 $12 $4 $8 $11 Calculate the correlation coefficient, r. Calculate the coefficient of determination, r; of non determination. Interpret them. Suppose you wish to test for the significance of r, the correlation coefficient, in problem 7a, given that n-5. Using the .01 level of significance, test the hypothesis that r is not different from 0 versusthe hypothesis that r is different from 0 (remember r can be between -1 and +1) in the population. Do you accept or reject the null hypothesis?
Transcribed Image Text:a. b. Suppose you are given the following data involving weekly sales and test scores supposedly designed to pick out the "best" salespersons. 1. 2. 3. 5. Salesperson Mr. Amber Mr. Archer Ms. Smith Mr. Malcolm Ms. Goodwin Test Score (x) 4 2 3 6. 10 Weekly Sales (y)-in thou, of dollars $6 $12 $4 $8 $11 Calculate the correlation coefficient, r. Calculate the coefficient of determination, r; of non determination. Interpret them. Suppose you wish to test for the significance of r, the correlation coefficient, in problem 7a, given that n-5. Using the .01 level of significance, test the hypothesis that r is not different from 0 versusthe hypothesis that r is different from 0 (remember r can be between -1 and +1) in the population. Do you accept or reject the null hypothesis?
Use the following data for both problems Test score 8 6 Mr. Amber Mr. Archer Ms Smith Mr. Malcolm Mr. Goodwin Ms. Bly Ms.Rain 15 Use x=5 for Part III of the regression problem (prediction interval). 5 10 9 7 parts a-b) 4 Weekly sales (in millions) 13 14 9 12 11 10
Transcribed Image Text:Use the following data for both problems Test score 8 6 Mr. Amber Mr. Archer Ms Smith Mr. Malcolm Mr. Goodwin Ms. Bly Ms.Rain 15 Use x=5 for Part III of the regression problem (prediction interval). 5 10 9 7 parts a-b) 4 Weekly sales (in millions) 13 14 9 12 11 10
Expert Solution
steps

Step by step

Solved in 3 steps with 1 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