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Based on the research of Ibbotson Associates, a Chicago investment firm, and Prof. Jeremy Siegel of the Wharton School of the University of Pennsylvania, the average return on large-company stocks since 1920 has been 10.5% per year and the standard deviation has been 4.75%.
Assuming a normal distribution for stock returns (and that the trend will continue this year), what is the probability that a largecompany stock you've just bought will make in 1 year at least 12%? Will lose money? Will make at least 5%?
Using the .05 level of significance, what should we conclude about the theory that 24 hours is the natural cycle? That is, does the average cycle length under these conditions differ significantly from 24 hours?
Show that this property is preserved by a matrix power product, and check whether numerical inaccuracies occur when the power is high enough.
how can you do a regression analysis on excel to predict your sales for the next 5
truck tire life is normally distributed with a mean of 60000 miles and a standard deviation of 4000 miles. what is the
the size of fish in a lake follows a normal distribution with mean m 1 lb 4 oz and standard deviation s 3 oz . fish
a market researcher for an automobile company suspects differences in preferred color between male and female buyers.
Create a 90% confidence interval for true mean amount of cholesterol in chicken eggs.
In 1997, 39.4% of men had made orders by phone in the last 12 months a market research analyst feels that this percentage has declined because of internet purchases. she obtains a random sample of 500 men and determines that 191 of them have made ord..
the manufacturer of a new line of ink-jet printers would like to include as part of its advertising the number of pages
Data on the rates of return for two different stocks, were collected over a fifty year period. The rate of return is defined as, the increase in value of the portfolio (including any dividends or other distributions) during the year, divided by it..
(a) Is it misleading to advertise this as "IO-lb test line"? Explain what your results mean. (b) Construct a 95% prediction interval for the tensile strength of the next randomly selected spool. (c) Construct an interval that with 90% confid..
Use the Internet to research the basic lottery system in your state. For example, the state of Ohio has a Pick 5 game where a customer selects 5 single-digit numbers (0-9). Determine the probability of winning your state's lottery game
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