The following table presents the highway gasoline mileage performance (y) and en

Question

The following table presents the highway gasoline mileage performance (y) and engine displacement (x) for Damler-Chrysler vehicles for model year 2005 (source: U.S. Environmental Protection Agency) Carline 300C/SRT-8 CARAVAN 2WD CROSSFIRE ROADSTER 196 DAKOTA PICKUP 2WD DAKOTA PICKUP 4WD DURANGO 2WD GRAND CHEROKEE 2WD 226 GRAND CHEROKEE 4WD348 LIBERTY/CHEROKEE 2WD 148 LIBERTY/CHEROKEE 4WD 226 NEON/SRT-4/SX 2.0 PACIFICA 2WD PACIFICA AWD PT CRUISER RAM 1500 PICKUP 2WD 500 RAM 1500 PICKUP 4WD 348 SEBRING 4-DR STRATUS 4-DR TOWN & COUNTRY 2WD 148 VIPER CONVERTIBLE WRANGLER/TJ 4WD Engine Displacement MPG (highway) 215 201 30.8 32.5 35.4 28.1 24.4 24.1 28.5 24.2 32.8 28.0 41.3 30.0 28.2 34.1 18.7 20.3 35.1 37.9 33.8 25.9 26.4 226 226 348 122 215 215 148 165 148 500 148

Explanation / Answer

a) 90% confidence interval of Y-intercept : 35.68624538 42.6247643

b) 90% confidence interval of Engine : -0.05347987 -0.0269529

c) confidence interval at x = 117 : 31.85143 37.04894

d) prediction interval at x = 117 :26.19559 42.70479

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.