Monday

December 22, 2014

December 22, 2014

Posted by **Tesa** on Thursday, July 11, 2013 at 3:08am.

- Business Statistics -
**MathGuru**, Friday, July 12, 2013 at 5:12pmTry this formula:

n = [(z-value)^2 * p * q]/E^2

= [(2.33)^2 * .5 * .5]/.03^2

I'll let you finish the calculation.

Note: n = sample size needed; .5 (if no value is stated in the problem) for p and .5 (which is 1 - p) for q. E = maximum error, which is .03 (3%) in the problem. Z-value is found using a z-table (for 98%, the value is approximately 2.33). Symbols: * means to multiply and ^2 means squared.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

Business Statistics - You wish to learn the average age of an MBA student within...

Statistics - How many students must we sample if we want to be within 4% of the ...

statistics - How many students must we sample if we want to be within 4% of the ...

Statistics - How many students must we sample if we want to be within 4% of the ...

statistics - How large a sample should be surveyed to estimate the true ...

college - How many students must we sample if we want to be within 4% of the ...

Statistics - Find the minimum sample size that should be chosen to assure that ...

Bus 221, Devry - How many students must we sample if we want to be within 4% of ...

stats - How many students must we sample if we want to be within 4% of the true ...

Statistics - A study found that 82% of elementary students buy lunch at school ...