(a) According to Chebyshev's theorem, at least _%? of the relative increases in stock price lie between 0.55% and 1.19%. (b) According to Chebyshev's theorem, at least 56% of the relative increases in stock price lie between _%? and _%? . (Round your answer to 2 decimal places.)
There is some evidence that, in the years 1981-85, a simple name change resulted in a short-term increase in the price of certain business firms' stocks (relative to the prices of similar stocks). (See D. Horsky and P. Swyngedouw, "Does it pay to change your company's name? A stock market perspective," Marketing Science v.6, pp. 320-35,1987.)
Suppose that, to test the profitability of name changes in the more recent market (the past five years), we analyze the stock prices of a large sample of corporations shortly after they changed names, and we find that the
(a) According to Chebyshev's theorem, at least _%? of the relative increases in stock price lie between 0.55% and 1.19%.
of the relative increases in stock price lie between _%? and _%?
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