Question: 14 different 2 ^nd year medical students took blood pressure measurements of the same patient and the results are listed below.

Refer to data sets 14 and use the values.

1. Find the regression equation that expresses the dependent variable of Flesch Reading Ease score in terms of the independent variable of the words per sentence.
   J.K Rowling:

   SUMMARY OUTPUT
   Regression Statistics
   Multiple R	0.001837
   R Square	3.37E-06
   Adjusted R Square	-0.1
   Standard Error	4.90988
   Observations	12

   
   \[y=80.73392+0.001162x\]
   Leo Tolstoy :

   SUMMARY OUTPUT
   Regression Statistics
   Multiple R	0.561955
   R Square	0.315794
   Adjusted R Square	0.247373
   Standard Error	6.817136
   Observations	12

   
   \[y=80.03631-0.72199x\]
2. Find the regression equation that expresses the dependent variable of Flesch Reading Ease score in terms of the independent variable of the characters per word.

J.K Rowling:

Leo Tolstoy :

1. Find the regression equation that expresses the dependent variable of Flesch Reading Ease score in terms of the independent variable of the words per sentence and characters per word.
   J.K Rowling:

   Regression Statistics
   Multiple R	0.83266291
   R Square	0.693327522
   Adjusted R Square	0.625178082
   Standard Error	2.866076187
   Observations	12

   
   \[y=171.92095-0.5468{{x}_{1}}-19.6062955{{x}_{2}}\]
   Leo Tolstoy :

   SUMMARY OUTPUT
   Regression Statistics
   Multiple R	0.924985535
   R Square	0.855598239
   Adjusted R Square	0.823508959
   Standard Error	3.301212032
   Observations	12

   
   \[y=233.067-0.859974{{x}_{1}}-33.729489{{x}_{2}}\]
2. For the regression equations found in parts (a), (b), and (c) which is the best equation for predicting the Flesch Ease score? Why?
3. Is the best regression equation identified in part (d) a good equation for predicting a Flesch Reading Ease score? Why or Why nor?

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