You've asked 55 parents if they have more than one child. It turns out that 77 in 100 parents have more than one child. Compute the 99% confidence interval.

I have the below

n=55

sample mean =0.77

z99=2.58

Neither of the standard deviations are available, how do I calculate the intervals?

Can some one help me with the solution please.

I have the below

n=55

sample mean =0.77

z99=2.58

Neither of the standard deviations are available, how do I calculate the intervals?

Can some one help me with the solution please.

Last edited: