Wednesday

September 24, 2014

September 24, 2014

Posted by **John** on Thursday, May 2, 2013 at 9:35pm.

If Linda wants to be 90 percent Confident that her sample estimate of the proportion of voters who favor the bond is within 2 percent of the population percent p who favor the bond how large a sample should she use?

- statistics -
**dais**, Thursday, May 2, 2013 at 10:55pmn=(z*/m)squared(p*)(1-p*)

so be sure to square (z*/m)

m= margin of error, the invNorm for 90% is 1.645, p*=.5, if not given

The problem worked out:

(1.645/0.02)squared(.5)(1-.5)= 1691.265625 so the sample size should be 1691 people. Hope this helps

**Answer this Question**

**Related Questions**

math - pat gave $24 to mary and linda in the ratio 1:3. how much money does ...

math - lynn is 6 years older than Linda.The sum of their ages is 36. What is ...

Math - Linda works at a pharmacy for $15 an hour. She also babysits for $10 an ...

Algebra 1 (Reiny) - How am I supposed to solve and graph this? "Linda works at a...

Math - Gary and Linda are at the movies. Gary has $9 to spend on snacks and ...

math - Linda along with her family traveled a distance of 495 miles in 9 hours ...

To Linda >> Microeconomics - Linda, I've deleted your 15 multiple choice ...

pre-algebra - Linda would like to hire a clown to perform at her son's birthday...

MATH - LINDA INHERITED AN ESTATE WORTH $225,000. THE ATTORNEY TOLD HER THAT THE...

College Statistics - What would be the range of impact of an individualized ...