The data needed to answer the questions is included in the image.

Given:

The correlation of Wattage and Area is 0.9390 and the relationship is direct.

t = 11.6138

Regression equation: Area = -22.5810 + 0.1489 Wattage

Questions I need to answer:

1. What heating area corresponds with a 1,500-watt heater? (Round your answer to 4 decimal places.)

2. What is the 95% confidence interval of heating the area if the wattage is 1,500? (Round your answers to 4 decimal places.)

consumer buying cooperative tested the effective heating area of 20 different electric space heaters with different wattages. Here re the results. Heater |.ii'attage Area 1 1,599 295 2 759 T9 3 1,599 199 4 1,259 151 5 1,259 181 5 1,259 217 ? 1,999 94 8 2,999 298 9 1,999 135 19 1,599 211 11 1,259 115 12 599 ?2 13 599 82 14 1,599 295 15 2,999 245 15 1,599 219 1? 759 53 18 1,599 299 19 1,259 151 29 599 44