Mathematics, 03.06.2021 01:40 oscardiazbet8803
Assume that we want to estimate the mean IQ score for the population of statistics students. How many statistics students must be randomly selected for IQ tests if we want 95% confidence that the sample mean is within 3 IQ points of the population mean? The Standard Deviation is 15.
Answers: 3
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
.
, so Z = 1.96.
is the standard deviation of the population and n is the size of the sample.
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Assume that we want to estimate the mean IQ score for the population of statistics students. How man...
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