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The average weekly earnings of bus drivers in a city are $950 with a standard deviation of $45. Assume that we select a random sample of 81 bus drivers.

a. Compute the standard error of the mean.
b. What is the probability that the sample mean will be greater than $960?
c. If the population of bus drivers consisted of 400 drivers, what would be the standard error of the mean?

Macroeconomics, Economics

  • Category:- Macroeconomics
  • Reference No.:- M9162070

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