State the factors that affect power and what factors we have to specify to do a sample size calculation. Some notes on the behaviour of sample size calculations and power for unequal group sizes This ...

The formula has a bunch of Greek letters ... between groups might have occurred by chance. The problem with sample size calculation is that you often get the inverse square law working twice ...

Using the appropriate sample size formula, it was decided that 174 records needed to be examined. Using the Excel random ...

free sample of Enfamil when you print a voucher, bring it into your doctor, and ask which type of Enfamil formula is best for ... Unclear how big the sample size is. Caveats: subject to availability.