Question

Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $15,000 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $15,000 and $20,000. (a) Suppose you bid $17,000. What is the probability that your bid will be accepted? (b) Suppose you bid $18,000. What is the probability that your bid will be accepted? (c) What amount should you bid in dollars to maximize the probability that you get the property? (d) Suppose you know someone who is willing to pay you $21,000 for the property. What is the expected profit in dollars if you bid the amount given in part (c)? Find a bid in dollars which produces a greater expected profit than bidding the amount given in part (c). (If an answer does not exist, enter DNE.) Would you consider bidding less than the amount in part (c)? Why or why not? Yes. There is a bid which gives a greater expected profit than the bid given in part (c), and thus a higher expected profit is possible with a bid smaller than the amount in part (c). No. The bid which maximizes the expected profit is the amount given in part (c), thus it does not make sense to place a smaller bid.

          Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $15,000 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $15,000 and $20,000.
(a) Suppose you bid $17,000. What is the probability that your bid will be accepted?
(b) Suppose you bid $18,000. What is the probability that your bid will be accepted?
(c) What amount should you bid in dollars to maximize the probability that you get the property?
(d) Suppose you know someone who is willing to pay you $21,000 for the property.
What is the expected profit in dollars if you bid the amount given in part (c)?
Find a bid in dollars which produces a greater expected profit than bidding the amount given in part (c). (If an answer does not exist, enter DNE.)
Would you consider bidding less than the amount in part (c)? Why or why not?
Yes. There is a bid which gives a greater expected profit than the bid given in part (c), and thus a higher expected profit is possible with a bid smaller than the amount in part (c).
No. The bid which maximizes the expected profit is the amount given in part (c), thus it does not make sense to place a smaller bid.
        
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Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of 15,000 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between15,000 and 20,000.
(a) Suppose you bid17,000. What is the probability that your bid will be accepted?
(b) Suppose you bid 18,000. What is the probability that your bid will be accepted?
(c) What amount should you bid in dollars to maximize the probability that you get the property?
(d) Suppose you know someone who is willing to pay you21,000 for the property.
What is the expected profit in dollars if you bid the amount given in part (c)?
Find a bid in dollars which produces a greater expected profit than bidding the amount given in part (c). (If an answer does not exist, enter DNE.)
Would you consider bidding less than the amount in part (c)? Why or why not?
Yes. There is a bid which gives a greater expected profit than the bid given in part (c), and thus a higher expected profit is possible with a bid smaller than the amount in part (c).
No. The bid which maximizes the expected profit is the amount given in part (c), thus it does not make sense to place a smaller bid.

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Elementary Statistics a Step by Step Approach
Elementary Statistics a Step by Step Approach
Allan G. Bluman 9th Edition
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Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $15,000 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $15,000 and $20,000. (a) Suppose you bid $17,000. What is the probability that your bid will be accepted? (b) Suppose you bid $18,000. What is the probability that your bid will be accepted? (c) What amount should you bid in dollars to maximize the probability that you get the property? (d) Suppose you know someone who is willing to pay you $21,000 for the property. What is the expected profit in dollars if you bid the amount given in part (c)? Find a bid in dollars which produces a greater expected profit than bidding the amount given in part (c). (If an answer does not exist, enter DNE.) Would you consider bidding less than the amount in part (c)? Why or why not? Yes. There is a bid which gives a greater expected profit than the bid given in part (c), and thus a higher expected profit is possible with a bid smaller than the amount in part (c). No. The bid which maximizes the expected profit is the amount given in part (c), thus it does not make sense to place a smaller bid.
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Suppose we are interested in bidding on a piece of land, and we know one other bidder is interested. The seller announced that the highest bid in excess of $15,000 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $15,000 and $20,000. (a) Suppose you bid $17,000. What is the probability that your bid will be accepted? (b) Suppose you bid $18,000. What is the probability that your bid will be accepted? (c) What amount should you bid in dollars to maximize the probability that you get the property? $ (d) Suppose you know someone who is willing to pay you $21,000 for the property. What is the expected profit in dollars if you bid the amount given in part (c)? $ Find a bid in dollars that produces a greater expected profit than bidding the amount given in part (c). (If an answer does not exist, enter DNE.) $ Would you consider bidding less than the amount in part (c)? Why or why not? Yes. There is a bid that gives a greater expected profit than the bid given in part (c), and thus a higher expected profit is possible with a bid smaller than the amount in part (c). No. The bid that maximizes the expected profit is the amount given in part (c), thus it does not make sense to place a smaller bid.

Sri K.

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Transcript

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00:01 So in this question we're told that x, our competitors bid, is uniform between 15 ,000 and 20 ,000.
00:12 So that's suppose that you bid 17 ,000.
00:15 What's the probability your bid will be accepted? so probability of accepted, given our bid is 17 ,000.
00:24 It's going to be the probability that x is less than 17 ,000, which is 17 minus 15 over 20 minus 15.
00:33 So that's two -fifths.
00:36 So that's the probability of being accepted given our bid is 17 ,000.
00:43 Part b, let's suppose you bid 18 ,000.
00:46 What's the probability of being accepted then? so the probability of being accepted, given we bid 18 ,000, is the probability that x is less than 18.
00:54 So that's 18 minus 15 over 20 minus 15, which is three -fifths.
00:59 So the probability of being accepted, given your bid is 18, is three -fifths.
01:08 What amount should you bid in order to maximize the probability that you get the property? so the probability of being accepted given a bid is going to be the bid minus 15 divided by 20 minus 15.
01:21 And we want to maximize this with respect to b.
01:25 So we can maximize this by setting b equals...
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