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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. The figures for the governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, and 36 square feet. (a) Figure the means and standard deviations for the governors and for the CEOs. (b) Explain, to a person who has never had a course in statistics, what you have done. (c) Note the ways in which the means and standard deviations differ, and speculate on the possible meaning of these differences, presuming that they are representative of U.S. governors and large corporations' CEOs in general.
A powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States.
In other words, could you generate two sets of random numbers (of length, say, 50) and set out the calculations in detail to determine whether the random variables are independent using chi-squared.
Can someone please break these problems down so that I can understand how to get the correct answer.
A survey of top executives revealed that 35 percent of them regularly read Time magazine, 20 percent read Newsweek, and 40 percent read U.S. News and World Report. Ten percent read both Time and U.S. News and World Report.
The relationship d = 5000 - 25p describes what happens to demand (d) as price (p) varies. The price can vary between $10 and $50. What is the mathematical expression for total revenue (TRV).
Construct a 99% confidence interval for the population mean tread wear for this type of tire.
Can we conclude that the mean age of the population from which the sample may be presumed to have been drawn is less than 60 years? Let α = .05
Each time marksman i fires he hits the target,independently of the past, with probability P i,i=1,2,3. Determine the proportion of time, in the long run, that each marksman shoots.
Suppose that the average annual salary for the worker in United States is $39,000.00 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000.00.
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
Identify 5 variables of interest to healthcare managers. Select and define one variable and include your rationale for selecting this variable. What is the difference between a dependent and independent variable?
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