Question 8.312

biomass

11. Biomass Power Plants. The table25 contains a random sample of eight biomass-fueled power plants and the amount of energy generated (capacity) in megawatts (MW) in 2014. Construct and interpret a 95% confidence interval for the mean capacity.

image
Normal probability plot of energy capacity in megawatts.
Company Location Capacity
(MW)
Hoge Lumber Co. New Knoxville,
Ohio
3.7
Evergreen Clean Energy Eagle, CO 12.0
GreenHunter Energy Grapevine, TX 18.5
Covanta Energy
Corporation
Niagara Falls, NY 30.0
Northwest Energy
Systems Co.
Warm Springs, OR 37.0
Riverstone Holdings Kenansville, NC 44.1
Lee County Solid Waste
Authority
Ft. Myers, FL 57.0
Energy Investor Funds Detroit, MI 68.0
Dominion Virginia Power Hurt, VA 83.0
Table 8.35: Source: biomassmagazine.com/plants/listplants/biomass/US.

8.99.11

(18.91, 59.61)