Mathematics, 14.07.2019 03:00 cece9080

The standard deviation of a population is known to be 7.8. if the sample size is 85, what is the standard error of the mean? 1) 0.22 2) 0.85 3) 1.047 4) 6.008

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The standard deviation of a population is known to be 7.8. if the sample size is 85, what is the sta...