Question

Listed below are altitudes (thousands of feet) and outside air temperatures (°F) recorded during a flight. Find the (a) explained variation, (b) unexplained variation, and (c) indicated prediction interval. There is sufficient evidence to support a claim of a linear correlation, so it is reasonable to use the regression equation when making predictions. For the prediction interval, use a 95% confidence level with the altitude of 6327 ft (or 6.327 thousand feet). 25 Altitude Temperature 3 56 8 38 17 28 27 - 28 31 - 41 32 - 56 a. Find the explained variation. (Round to two decimal places as needed.) b. Find the unexplained variation. (Round to five decimal places as needed.) c. Find the indicated prediction interval. D°f<y< °F (Round to four decimal places as needed.)

Answer 1

(a) r² = 0.92

(b) 1 - r² = 0.07966

(c)

95% Prediction Interval
lower	upper
10.2758	90.6179