What is the value of sigma y-bar in days carry answer out

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Suppose duration of human pregnancies are somewhat skewed with mean 263 days and standard deviation of 19 days. Suppose a certain obstetrician is currently providing prenatal care to 50 pregnant women. Let y-bar represent the mean length of their pregnancies.

What is the value of sigma y-bar? (in days, carry answer out two decimal places)

Reference no: EM13608307

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