. Exercise 11-7 presented gasoline mileage performance for 20 cars, along with information about the engine displacement. Find a 95% confidence interval on each of the following: (a) Slope (b) Intercept (c) Mean highway gasoline mileage when the engine displacement is x 150 in3 (d) Construct a 95% prediction interval on highway gasoline mileage when the engine displacement is x 150 in3 .

→ CH2 Part 2 ← Section 2.3 Remember that when you looked at graphical displays of numerical data, you were interested in three characteristics: center, spread or dispersion, and shape. In this chapter we look at numerical measures that can be used to describe the same features of the data. This chapter-2 part-2 covers the following...