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A group of investors was polled each week for the last five weeks about whether they...

A group of investors was polled each week for the last five weeks about whether they were bullish or bearish concerning the market. Construct the market sentiment index for each week based on these polls. (Do not round intermediate calculations. Round your answers to 4 decimal places.)

Week Bulls Bears
1 62 63
2 53 76
3 51 78
4 54 75
5 31 60
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