# Thread: Give lower 95% confidence level of proportion p

1. ## Give lower 95% confidence level of proportion p

Hi there,

I would first like to say Hi to everyone, and really appreciate those in charge of this website for coming up with a website for those who want to learn more about mathematics.

I am currently learning about surveys, and excel and probability.

I need help on the following question:

Give lower 95% confidence level of proportion p

The only information I have currently is the proportion and a sample of let's say 121 students.

So how exactly do I answer this question?

I'm still learning about this topic in hand, I find it hard, but will do my best to get better at it.

I do apologise if this isn't posted in the right thread, and would appreciate if someone could kindly place it in the right thread just in case.

Many thanks,

Solidsnoop29

2. Start with a formula? Check your text for confidence intervals, if this is a Intro Stats class for non math majors, then you should have four formulas for confidence intervals: mean, proportion, difference between means and difference between proportions. The one you want is for proportions. Start there.