4.89 Tall Buildings The scatterplot shows information about the worlds tallest 169 buildings. Stories means Floors. a. What does the trend tell us about the

4.89╇ Tall Buildings The scatterplot shows information about the world’s tallest 169 buildings. “Stories” means “Floors.”

a. What does the trend tell us about the relationship between stories and height (feet)?

b. The regression line for predicting the height (in feet) from the number of stories is shown above the graph. What height would you predict for a building with 100 stories?

c. Interpret the slope.

d. What, if anything, do we learn from the intercept?

e. Interpret the coefficient of determination.
(This data set is available at the text’s website, and it contains several other variables. You might want to check to see whether the year the building was constructed is related to its height, for example.)

Height (feet) 3000 2500 2000 1500 1000 Predicted Height = 115.4 + 12.85 Stories R-Sq 71.4% 50 75 100 125 150 175 Stories