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Question(s) / Instruction(s):

A bond analyst is analyzing the interest rates for equivalent municipal bonds issued by
two different states. At = .05, is there a difference in the interest rates paid by the two states?
State A State B
Sample size 80 70
Mean interest rate (%) 3.7 4.25
Sample variance 0.02 0.03

A) No, because the test value –0.02 is inside the interval (-1.96, 1.96)
B) Yes, because the test value 445.79 is outside the interval (-1.96, 1.96)
C) Yes, because the test value –21.11 is outside the interval (-1.96, 1.96)
D) Yes, because the test value –8.11 is outside the interval (-1.96, 1.96)

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