Mathematics, 15.04.2020 01:41, ublockmon786
Winner’s curse ~ In auction bidding, the "winner’s curse" is the phenomenon of the winning bid price being above the expected value of the item being auctioned. In a study, two groups of bidders were compared in a sealed-bid auction, super-experienced bidders and less-experienced bidders. In the super-experienced group, 28 of 189 winning bids were above the item’s expected value. In the less-experienced group, 33 of 149 winning bids were above the item’s expected value. We want to determine if the proportion of winning bids that were above the item’s expected value for the super-experienced bidders is less than that in the less-experienced bidders. Notation: 1=super-experienced bidders and 2=less-experienced bidders. What are the null and alternative hypothesis for this hypothesis test? Question 12 options: Null hypothesis Alternative hypothesis 1. p1=p2 2. pˆ1=pˆ2 3. p1≠p2 4. pˆ1≠pˆ2 5. p1>p2 6. pˆ1>pˆ2 7. p1
Answers: 1
Mathematics, 21.06.2019 16:50, maymayrod2000
Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?
Answers: 1
Mathematics, 21.06.2019 23:00, janeou17xn
The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.
Answers: 1
Mathematics, 22.06.2019 02:00, Mitchmorgan3816
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.
Answers: 2
Winner’s curse ~ In auction bidding, the "winner’s curse" is the phenomenon of the winning bid price...
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