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Question: According to Money, in the year prior to March 2007, the average return for firms of the S&P 500 was 13.1%.9 Assume that the standard deviation of returns was 1.2%. If a random sample of 36 companies in the S&P 500 is selected, what is the probability that their average return for this period will be between 12% and 15%?
In a survey of 750 senior business executives by Business Week magazine, 56% indicated that they felt that even if merit and abilities are equal, people with MBAs often get promoted faster than people without the degree. Prepare a 92% confidenc..
A certain drug known to affect coordination can be administered in three ways: orally, by injection under the skin, or by injection into a vein. How many levels does each of the factors have
Determine the probability that tire wears out before 70,000 miles?
a recent survey described the sleep time of college students as normally distributed with a standard deviation of 1.15
For the sheet-metal stamping machine in certain factory, the time between failures, X1 has a mean between the failures, of 56 hours and a variance of 16 hours.
The mean number of words per minute read by sixth graders is 89 with a standard deviation of 16. If 66 sixth graders are randomly selected, what is the probability that the sample mean would be greater than 92.25?
Describe the difference between quantitative and mixed methods, what are the general advantages and disadvantages of the two research approaches featured in the articles.
What is the 95 percent interval for the population mean?
the following games are played with 8 cards the four kings and the four aces. the dealer fans the cards with their back
consider two independent random variables xsub1 and xsub2 having the same cauchy distributionfx1pie1x2 for negative
Calculate and plot the regression residuals in the manner outlined in this section.- What variance-stabilizing transformation is suggested by the trend in the residual plot?
is the student grade classification at baylor the same as it is for other universities? in the united states. of those
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