Jamiasimmons1811 Jamiasimmons1811

17-06-2024
Mathematics

Answered

How many students must be randomly selected to estimate the mean weekly earnings of students at one college? we want 95% confidence that the sample mean is within $3 of the population mean, and the population standard deviation is known to be $26.
a.408
b.203
c.289
d.254

Answer :

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