French music playing German music playing Bottles of French wine sold 40 12 Bott

Question

French music playing

German music playing

Bottles of French wine sold

                 40

                  12

Bottles of German wine sold

                 8

                  22

1. French wines were ____more likely to be purchased when French music was playing than when German music was playing

A) 9.16

B) 5.0

C) 2.36

D) 4.32

French music playing

German music playing

Bottles of French wine sold

                 40

                  12

Bottles of German wine sold

                 8

                  22

Explanation / Answer

Proportion of total wines that were French when french music was there = 40/(40 + 8) = 0.8333

Proportion of total wines that were French when German music was there = 12/(12+22 ) = 0.3529

Now the ratio of the above 2 ratios is computed as:

= 0.8333 / 0.3529

= 2.36

Therefore French wines were 2.36 times more likely to be purchased when French music was playing than when German music was playing

Therefore C is the correct answer here.

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