Friday

January 30, 2015

January 30, 2015

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

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

- Confidence Interval -
**Robocop**, Tuesday, January 29, 2013 at 3:51pmNever mind. Figured it out.

**Answer this Question**

**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...

stats - 1. A confidence interval can be calculated to estimate the population ...