I need help with Question 14Regression Math Please show your

Solution

Using technology, we get          
          
slope =    0.739859033      
intercept =    18.98921174      
          
Thus, the regression line is          
          
y^ =    0.739859033x + 18.98921174

              
          
Also, getting the correlation,          
          
r =    0.920518105      

Using a table for critical r values, as

df = n - 2 = 9 - 2 = 7

Then, at 0.05 level,

r(critical) = 0.666

Thus, as r > 0.666, there is significant evidence that the correlation coefficient is significant, at 0.05 level. [CONCLUSION]