Suppose a researcher wishes to predict weight loss from moti

Suppose a researcher wishes to predict weight loss from motivation (based on a scale that ranges from 1=low motivation to 10=high motivation). She collects the data presented below.

Find the standard error of measurement of the regression equation.

Solution

Using technology, we get the standard error of the estimate,              
              
sy =    2.448742747   [ANSWER]      

[If you are using technology such as Excel, you can use the LINEST function to obtain this directly.]