A study is conducted with a group of dieters to see if the number of grams of fat each consumes per day is related to cholesterol levels. The data are shown here.  Fat grams x            6.8   5.5   8.2  10   8.6  9.1  8.6 10.4 Cholesterol level y 183 201 193 283 222 250 190 218 Draw the scatter plot. Compute the value of the correlation coefficient. Test the significance of the correlation coefficient at a 0.05.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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A study is conducted with a group of dieters to see if the number of grams of fat each consumes per day is related to cholesterol levels. The data are shown here. 
Fat grams x            6.8   5.5   8.2  10   8.6  9.1  8.6 10.4
Cholesterol level y 183 201 193 283 222 250 190 218

  1. Draw the scatter plot.
  2. Compute the value of the correlation coefficient.
  3. Test the significance of the correlation coefficient at a 0.05.
  4. Determine the regression line equation.
  5. Plot the regression line on the scatter plot.
  6. Predict y for a specific value of x.
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