People age, the number of hours per week spent on exercise tends to decrease.  Here is a random sample comparing are and hours per week of exercise.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
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People age, the number of hours per week spent on exercise tends to decrease.  Here is a random sample comparing are and hours per week of exercise.  Assume both variables follow a normal distribution.

  1. Test the claim of correlation at the α = 0.05 level of significance.  Find the P-value         
  2. Will the null hypothesis be rejected?         
  3. Round the regression equation to one decimal place and use it to     
Age 21 36 41 45 31 25 50 61
Hours 15 14 6 12 10 20 5 4

 

 

 

 

 

 

 

 

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