Homework Help is Here – Start Your Trial Now!
Math
Statistics
7. From the National Educators Survey (N= 450), we learn that the correlation between number of alcoholic drinks per week (IV) and missed classes per week is 0.339, and the correlation between number of drinks per week and hours of exercise per week is -0.389. a) Interpret the two correlations. Does number of drinks per week have a stronger correlation with missed classes or exercise? Based on the information given, calculate R? for drinking and exercise and interpret in a sentence. c) The regression equation for drinking and missed classes is Ỹ = 1.53 + .21X. Interpret both a in the equation.

7. From the National Educators Survey (N= 450), we learn that the correlation between number of alcoholic drinks per week (IV) and missed classes per week is 0.339, and the correlation between number of drinks per week and hours of exercise per week is -0.389. a) Interpret the two correlations. Does number of drinks per week have a stronger correlation with missed classes or exercise? Based on the information given, calculate R? for drinking and exercise and interpret in a sentence. c) The regression equation for drinking and missed classes is Ỹ = 1.53 + .21X. Interpret both a in the equation.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
See similar textbooks
icon
Related questions
Question
7. From the National Educators Survey (N= 450), we learn that the correlation between number of alcoholic drinks per week (IV) and missed classes per week is 0.339, and the correlation between number of drinks per week and hours of exercise per week is -0.389. a) Interpret the two correlations. Does number of drinks per week have a stronger correlation with missed classes or exercise? b) Based on the information given, calculate R? for drinking and exercise and interpret in a sentence. The regression equation for drinking and missed classes is Ý = 1.53 + .21X. Interpret both c) a in the equation. d) For someone who has 5 drinks per week, what is the predicted number of missed classes? e) If someone has 20 drinks per week, what is the predicted number of missed classes?
Transcribed Image Text:7. From the National Educators Survey (N= 450), we learn that the correlation between number of alcoholic drinks per week (IV) and missed classes per week is 0.339, and the correlation between number of drinks per week and hours of exercise per week is -0.389. a) Interpret the two correlations. Does number of drinks per week have a stronger correlation with missed classes or exercise? b) Based on the information given, calculate R? for drinking and exercise and interpret in a sentence. The regression equation for drinking and missed classes is Ý = 1.53 + .21X. Interpret both c) a in the equation. d) For someone who has 5 drinks per week, what is the predicted number of missed classes? e) If someone has 20 drinks per week, what is the predicted number of missed classes?
Expert Solution
steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
SEE MORE TEXTBOOKS