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For a population with a mean equal to 100 and a standard deviation equal to 30​,...

For a population with a mean equal to 100 and a standard deviation equal to 30​, calculate the standard error of the mean for the following sample sizes.

​a) 20

​b)40

​c)60

​a) The standard error of the mean for a sample size of 20 is.

​(Round to two decimal places as​ needed.)

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O 8 2 O T)= 60 33-8721

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