if a market is efficient then stock prices are in equilibrium or are "fairly" priced alpha a measure of investment performance above and beyond the risks borne by the investor, indicating an abnormal return properties of an efficient market 1. as information gets better, price becomes more meaningful so returns also become more meaningful efficient market hypothesis (EMH) or efficient market the theory that markets are efficient when prices respond instantly and correctly to the revelation of new information
we observe prices in markets and then calculate returns TERMS IN THIS SET (44) Returns and Prices -returns are a function of prices Which of the following is a true statement about this distribution? It is normal because np and nq are both greater than 5 Which of the following symbols does NOT represent a statistic? µ +56 more terms In a sample of 50 college students is taken. Y = # of students who do not live within 150 miles of home So X = # of students who live within 150 miles of home Ha : µ < 12 It has been determined that 45% of all college students attend schools within 150 miles of their homes.
Which of the following would be the correct hypotheses for this test? H0 : µ = 12 An hypothesis test is going to be conducted to see if the sample indicates that the mean amount is significantly less than 12 ounces. A sample of 200 cans is taken and the mean amount in the sample is 11.42 ounces. There have been concerns that it is underfilling the cans. Six drivers arrive for auto inspections.įind the probability that exactly two automobiles will require repair.3241 A filling machine is supposed to be putting 12 ounces of soda into cans. Y = the number of automobiles not requiring repairsģ0% of the automobiles inspected at a state inspection station required repairs to meet the inspection standard. TERMS IN THIS SET (60) X = the number of automobiles requiring repairs
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