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Chapter 6, Section 2-D, Exercise 065 250 and standard deviation 80, find the standard error of the distribution of sample mea

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Answer

we know that

standard error = (standard deviation/sqrt(sample size))

setting standard deviation = 80 and sample size n = 50

we get

standard error = (80/sqrt(50))

= 80/7.071

= 11.314

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