Friday

July 25, 2014

July 25, 2014

Posted by **jessica** on Thursday, October 27, 2011 at 12:45am.

- statistics -
**MathGuru**, Thursday, October 27, 2011 at 5:01pmUse a confidence interval formula for proportions:

CI95 = p + or - (1.96)(√pq/n)

...where √ = square root, p = x/n, q = 1 - p, and n = sample size.

Note:

x = 20

n = 1513

Remember to convert all fractions to decimals before calculating the interval.

I hope this will help.

**Related Questions**

statistics - 570 people were in a survey and 124 people said yes. What ...

statistics - . A statistician needs to survey a sample of 50 people that is ...

Survey ? - Why should people be informed about teen suicide? ( I need like a ...

MTH233/statistics UOP - You work for the public relations department of the ...

Maths- Percentage - in a survey 120 pupils were asked which learning site they ...

statistics - Survey on concern for criminal in a survey 3 of 4 students said the...

Math - how to solve: In a survey at a supermarket, 78 out of 120 people surveyed...

Art - I left out these sentences. Could you please check them, too? Thank you. ...

Math - A survey finds that 85% of the people asked use the local bus. 35.3% of ...

weight issues - : My question: DO you agree with Ellen when she said that ...