# Thread: conf interval estimator 2

1. ## conf interval estimator 2

please help me

2. Originally Posted by samileo31
please help me
Have you reviewed this material in your classnotes and textbook? What have you tried? Where are you stuck?

3. ## i am not sure check it please------------

dear friends please check it

4. Originally Posted by samileo31
dear friends please check it
This starts along the right lines, but you have not answered the question, which asks for a confidence interval.

You need to say that you are using a normal approximation to a Poisson distribution

The standard error is OK

The confidence interval is $\overline{x} \pm 1.645 \times s_{\overline{x}}$

CB