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Mathematics, 19.07.2019 23:20, aliyahmuhammad2948
Before lending someone money, banks must decide whether they believe the applicant will repay the loan. one strategy used is a point system. loan officers assess information about the applicant, totaling points they award for the person's income level, credit history, current debt burden, and so on. the higher the point total, the more convinced the bank is that it's safe to make the loan. any applicant with a lower point total than a certain cutoff score is denied a loan. think of this decision as a hypothesis test. since the bank makes its profit from the interest collected on repaid loans, their null hypothesis is that the applicant will repay the loan and therefore should get the money. only if the person's score falls below the minimum cutoff will the bank reject the null and deny the loan. complete parts a through c below. a) when a person defaults on a loan, which type of error did the bank make?
b) which kind of error is it when the bank misses an opportunity to make a loan to someone who would have repaid it?
c) suppose the bank decides to lower the cut-off score from 250 points to 200. is that analogous to choosing a higher or lower value of for a hypothesis test? explain.
d) what impact does this change in the cut-off value have on the chance of each type of error?
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Mathematics, 22.06.2019 01:50, mynameisjeff1417
According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?
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