Tuesday
September 16, 2014

Homework Help: Confidence Interval

Posted by Robocop on Tuesday, January 29, 2013 at 3:29pm.

Hi,

I need some help with a problem. Here is my example that I am studying.

Find a 95% C.I. for the population mean.
Same size 36
N(u, 64)
sample mean 51.8

51.8+-(4/3)(1.96)

Where does the 1.96 come from? 4/3=64/36 so I understand that.

Thanks

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics (42) - A simple random sample of 60 items resulted in a sample mean ...
statistics - A simple random sample of 60 items resulted in a sample mean of 80...
Statistics - Which of the following statements correctly interprets a 95% ...
Economics (41) - A simple random sample of 60 items resulted in a sample mean of...
Statistics - In a study to estimate a population mean, i start with a sample ...
Statistics - Suppose x has a mound-shaped distribution with sigma = 9 . A random...
Statistics - . As the sample size increases The confidence interval also ...
Word Problem - Given a normally distributed population, find a 95% confidence ...
Stats - It is known that the amount of time needed to change the oil in a car is...
Statistics - If someone gives you a sample mean and a standard deviation, you ...

Search
Members