Asked by Kennon
How large a sample should be taken if the population mean is to be estimated with 99% confidence to within $72? The population has a standard deviation of $800.
Answers
Answered by
DrBob222
mu = bar x +/- 2.58(sigma/sqrt N)
mu is the population mean.
bar x is the average.
2.59 gives the 99% confidence interval.
sigma is standard deviation. N is the number of sample. Solve for N.
mu is the population mean.
bar x is the average.
2.59 gives the 99% confidence interval.
sigma is standard deviation. N is the number of sample. Solve for N.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.