18. Auction Bids The author is a member of the board of directors of a nonprofit organiza- tion that held a fund-raising auction. He recorded the opening bids suggested by the auc- tioneer and the final winning bids for several items. The amounts are listed below. Is there sufficient evidence to conclude that there is a linear correlation between the opening bids suggested by the auctioneer and the final winning bids? Opening Bid Winning Bid Use a = 0.05. 1500 650 500 175 500 125 400 275 300 125

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