Mathematics, 16.07.2020 05:01, santiagodiaz727
what is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is E=1.5? The population standard deviation is known to be 10.75
Answers: 1
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
.
, so 
is the standard deviation of the population and n is the size of the sample.
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