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A firm offers a choice of 10 free software packages to buyers of their new home computer. There are 25 packages from which to choose. In how many ways can the selection be made? Five of the packages are computer games. How many selections are possible if exactly three computer games are selected? 21. A project manager has 10 chemical engineers on her staff. Four are women and six are men. These engineers are equally qualified. In a random selection of three workers. what is the probability that no women will be selected? Would you consider it unusual for no women to be selected under these circumstances? Explain.
"You are running a chi-squared test. If you have 5 groups with 3 characteristics each, what would your critical value be with an alpha of .25? a . Between 0 and 3.0
LSAT scores are normally distributed, with a mean of 150 and s = 10.
For cause 3, 60% of the failures in any year occur 1/4 of the way through the year and the other 40% occur 3/4 of the way through the year. Find formulas that give the unprimed rates in terms of the primed.
How have statistics been used inappropriately and what are some examples of when you have seen or heard statistics used inappropriately?
Construct a tree diagram and list the sample space. Assuming that boys and girls are equally likely, determine the probability that the couple has two girls.
A farmer in Iowa owns 45 acres of land. He is going to plant each acre with wheat or corn. Each acre planted with wheat yields $200 profit, requires 3 workers, and requires 2 tons of fertilizer; each with corn yields $300 profit, requires 2 worker..
A student takes a ten question objective test. Suppose that a student who knows 80% of the course material has probability .8 of success an any question.
A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations.
final averages are typically approximately normally distributed with a mean of 71 and a standard deviation of 8. your
For the following ANOVA experiments, determine the critical region(s) and critical value(s) that are used in the classical approach for testing the null hypothesis
a certain colege has 490 of the 584 freshman return as sophomores. does this college have a right to brag that it has
Late flights An airline reports that 85% of its flights arrive on time. To find the probability that its next four flights into LaGuardia Airport all arrive.
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