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The following data are the one-year return to investors in world stock investment funds, as published in Pensions & Investments. The data are in percent return (%): 35.9, 34.5, 33.7, 31.7, 27.5, 27.3, 27.3, 27.2, 27.1 25.5. Assume these data constitute a random sample of such funds, and use them to test the claim that the average world stock fund made more than 25% for its investors during this period.
To interpret, there were 50 days on which no credit applications were received, 77 days on which only one application was received, and so on. Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0. Use the ..
assume that the data has a normal distribution and the number of observations is greater than fifty. find the critical
A ball is then selected at random from urn 2. if the ball selected from urn 2 is red, what is the probability that the ball transferred from urn 1 was...(i)red?
Calculate a 3-period moving average for period 7. Compute the MAD of the forecast.
the time it takes a ski patroller to respond to an accident call has an exponential distribution with an average
Elizabeth Bailey is the owner and general manager of Princess Brides, which provides a wedding planning service in Southwest Louisiana.
At the .01 significance level, is there a relationship between job pressure and age?
A machine for making nuts is known to create nuts with a standard deviation in size of 0.20mm. A tradesman is required to adjust the machine to make 49mm nuts.
in the game of roulette a steel ball is rolled onto a wheel that contains 18 red 18 black and 2 green slots. if the
in a random sample of 1002 701 said they voted in a recent presidential election.a find the best point estimate of the
Calculate a95%confidence intervalfor theproportion of seniors who expectIRAs to betheir primarysourceof income in retirement.
Determine the range and standard deviation of the times.
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