Okay, so I took Data Analysis I over half a year ago and now I'm in II and the Prof isn't really reviewing things in a way that is helping me. He's using software to teach so I don't really get what is going on (yeah, it's easy but come on...not good for learning) and I don't have my old book to review with since I left it at home over the summer. I feel so nervous, I can't recall this stuff and I don't have the software to breeze through it anyways. Here is what I'm stuck on:

A random sample is to be selected from a population that has a proportion of successes π = 0.61. Determine the mean and standard deviation of the sampling distribution ofp for each of the following sample sizes. (Round the answers for μp to two decimal places, the answers for σp to four decimal places.)

1. n = 30

μp =

σp =

If someone can help me figure out that one there, hopefully it'll come back to me and I can do the rest. I just can't remember this for the life of me.