Question: For Exercises do a complete regression analysis. a. Draw the scatter plot. b. Compute the value of the correlation coefficient. c. Test the significance of

For Exercises do a complete regression analysis.

a. Draw the scatter plot.
b. Compute the value of the correlation coefficient.
c. Test the significance of the correlation coefficient at α = 0.05.
d. Determine the regression line equation if r is significant.
e. Plot the regression line on the scatter plot if appropriate.
f. Predict Ý for a specific value of x if appropriate.

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 level. The data are shown here. If there is a significant relationship, predict the cholesterol level of a dieter who consumes 8.5 grams of fat per day.

Fat grams .x Cholesterol level y 6.8 5.5 8.2 10 8.6 9.1

Fat grams .x Cholesterol level y 6.8 5.5 8.2 10 8.6 9.1 8.6 10.4 183 201 193 283 222 250 190 218

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