A wind farm is being proposed for the shore of Lake Superior to supply power to Thunder Bay and nearby mining operations. The farm operator is testing turbines from five different manufacturers and wants to select a single supplier for the whole wind farm. Wind conditions vary along the shore, and three sites are selected for testing. A turbine from each supplier is randomly positioned within each of those sites. The energy output (in gigawatt-hours) over a year is recorded for each turbine:

a) State the hypotheses.

b) Perform an ANOVA analysis with α = 0.05.

c) State the conclusions in business terms, including recommending the next step in the analysis.

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Supplier Site 1 A B 1.12 1.78 1.23 1.37 0.87 0.99 0.76 0.96 1.08 1.62 1.11 1.24 1.87 1.97 3 1.36 2. 3.