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1. A researcher desires to know if the age of a person is related to the ability to lose weight after a strict diet. The
1. A researcher desires to know if the age of a person is related to the ability to lose weight after a strict diet. The data are shown here. Age of a person 16 18 19 20 22 24 X Number of lost 8 5 7 4 kilos y 3 2 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) If there is a significant relationship, determine the regression line equation. 5) Predict the weight in kilos lost if a person who is 21 years undergoes a strict diet 6) Plot the regression line on the scatter plot. 7) Calculate the standard error of estimate. 8) Find the 95% prediction interval of the number of lost kilos when the person's age is 17 9) Find coefficient of determination and coefficient of non determination
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