Step 1 :Given the ages of the Best Actress winners as the predictor (x) variable, and the ages of the Best Actor winners as the response (y) variable, we need to perform a linear regression analysis to find the equation of the regression line.
Step 2 :The equation of the regression line is given by \(\hat{y} = a + bx\), where \(a\) is the y-intercept and \(b\) is the slope of the line.
Step 3 :Using the given data, we find that the y-intercept \(a\) is approximately 16.5 and the slope \(b\) is approximately 0.618. Therefore, the equation of the regression line is \(\hat{y} = 16.5 + 0.618x\).
Step 4 :We can use this regression equation to predict the age of the Best Actor winner when the age of the Best Actress winner is 30 years. Substituting \(x = 30\) into the equation, we get \(\hat{y} = 16.5 + 0.618 \times 30\), which gives a predicted age of approximately 47.0 years.
Step 5 :Comparing this predicted age with the actual age of the Best Actor winner (38 years), we find that the prediction is not within 5 years of the actual age.