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Question: Fruit Flies. Researchers tracked a population of 1,203,646 fruit flies, counting how many died each day for 171 days. Here are three time plots offering different views of these data. One shows the number of flies alive on each day, one the number who died that day, and the third the mortality rate - the fraction of the number alive who died. On the last day studied, the last 2 flies died, for a mortality rate of 1.0.
a) On approximately what day did the most flies die?
b) On what day during the first 100 days did the largest proportion of flies die?
c) When did the number of fruit flies alive stop changing very much from day to day?
the gauss markov theorem shows that ols is blue . so we of course hope and expect that our coeffcient estitames will
a random sample of homeowners from dallas and houston was asked to identify the primary source of heat for their homes.
Assume the underlying population is normal and that σ = 3.4. Is there any evidence to suggest that the download speed for the United States is greater than the world population mean? Use a = 0.01.
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How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate u and standard deviation in the formula for the normal approximation to the binomial
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Decide between two stock investment choices. Determine the probability for each condition to make the investment even between the two.
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He can award a bonus to 20 percent of the representatives. What is the cutoff point between those who earn a bonus and those who do not?
David Desreumaux, VP of Human Resources of American First Banks (AFB). What can David conclude from these statistics?
Find the p-value of the test of the hypothesis that mileage is not affected by the additive when the sign test is used;
specimens of blood from 10 different animals were analyzed for blood count say y in units of 100 and packed cell volume
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