Tuesday

October 21, 2014

October 21, 2014

Posted by **smrey** on Wednesday, June 13, 2012 at 6:51pm.

- statistics -
**MathGuru**, Thursday, June 14, 2012 at 7:23pmExample of a proportional confidence interval formula:

CI95 = p ± (1.96)[√(pq/n)]

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

Note: ± 1.96 represents 95% confidence interval.

For p in your problem: 350/757 = .46

For q: 1 - p = 1 - .46 = .54

n = 757

I let you take it from here to calculate the interval.

**Answer this Question**

**Related Questions**

Statistics - In a poll of 1,000 adults, 57% believed that there was too much ...

stats - You are a travel agent and wish to estimate, with 95% confidence, the ...

Probability and Statistics - The school superintendent would like to estimate ...

statistics - A researcher wishes to estimate with 95% confidence the proportion ...

Statistics - One of the questions in the Pew Internet & American Life Project ...

Statistics - A recent survey of students on the question “Do you think the ...

statistics - According to a Gallup Poll conducted in March of 2009, 38% of ...

statistics - Us travel data center survey of 1500 adults found that 42% of ...

Statistics - A recent Gallup Poll dealt with the proportion of Canadians who ...

Statistics - Do more than 50% of US adults get enough sleep? According to the ...