Formula:
n = [(z-value * sd)/E]^2
...where n = sample size, z-value will be 2.58 using a z-table to represent the 99% confidence interval, sd = 535, E = 137, ^2 means squared, and * means to multiply.
Plug the values into the formula and finish the calculation. Round your answer to the next highest whole number.
use the given information to find the minimum sample size required to estimate an unknown population mean. Margin of error/; $137, confidence level:99%, standard deviation = $535
1 answer
1 answer