What is the probability of obtaining a sample mean
For a normal population with a mean of m = 80 and a standard deviation of s = 10, what is the probability of obtaining a sample mean greater than M = 75 for a sample of n = 25 scores?
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Jules computes the maximum daily temperatures in New York and maximum daily temperatures in Boston for the days of December. Jim does it for the whole year. Who gets the higher correlation or are they the same?
ParseElement(elementString) takes a string of the 'SymbolCount' in such as 'H2', and return a tuple of the form (Symbol, count) such as ('H', 2)
Management consulting firms did very well on a paper employee basis partly because they are mostly comprised of managers (as opposed to blue-collar or entry-level workers). How big a factor do you think composition of the workforce is in the likel
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Estimate the minimum sample size necessary to estimate the true mean grams of fat to within plus or minus 2 grams with 98 percent confidence.
Management is concerned about session controls because the current system does not implement automatic logouts or password protected screen savers. They are concerned that operators are leaving stations without logging out and potentially leavi
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A random sample of n = 4 scores is obtained from a population with a mean of m = 80 and a standard deviation of s = 10. If the sample mean is M = 90, what is the z-score for the sample mean?
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