The accompanying data came from a study of collusion in bidding within the const

Question

The accompanying data came from a study of collusion in bidding within the construction industry No. Bidders No. Contracts 20 27 17 10 (a) What proportion of the contracts involved at most five bidders? At least five bidders? (Round your answers to three decimal places.) 0.630 0.630 at most five bidders at least five bidders x × 0522 (b) What proportion of the contracts involved between five and 10 bidders, inclusive? Strictly between five and 10 bidders? (Round your answers to three decimal places.) between five and 10 bidders, inclusive strictly between five and 10 bidders

Explanation / Answer

a) Total Contracts = 6+20+27+.... = 111

at most five bidders = (6+20+27+17)/111 = 0.631

at least five bidders = (17+11+9+6+8+4+3)/111 = 0.523

b) between 5 and 10 = (17+11+9+6+8+4)/111 = 0.495

Strictly between 5 and 10 = (11+9+6+8)/111 = 0.306

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