Test the hypothesis of no differences for average payback


Test the hypothesis of no differences for average payback period (years) necessary to justify solar heating systems for residences.

Savings and Loans Other Financiers

X1 = 8.7 X2 = 7.7

S2/1 = .5 S2/2 = .6

n1 = 100 n2 = 64

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Basic Statistics: Test the hypothesis of no differences for average payback
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