Friday

December 19, 2014

December 19, 2014

Posted by **Robin** on Sunday, September 5, 2010 at 4:44pm.

- Statistics -
**MathGuru**, Monday, September 6, 2010 at 7:04pmFormula:

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

...where n = sample size, z-value will be 2.58 using a z-table to represent the 99% confidence interval, sd = 3, E = 0.5, ^2 means squared, and * means to multiply.

Plug the values into the formula and finish the calculation. Round your answer to the next highest whole number.

- Statistics -
**me**, Friday, December 3, 2010 at 1:20amUsing a Z-value of 2.575, the answer is 238.7; or 240 if the answer is in multiple choice form.

**Answer this Question**

**Related Questions**

Statistics - A group of statistics students decided to conduct a survey at their...

statistics - A group of statistics students decided to conduct a survey at their...

Statistics - 28. A group of statistics students decided to conduct a survey at ...

Statistics - A survey among freshmen at a certain university revealed that the ...

statistics - 2. A teacher wants to investigate whether there is a difference ...

statistics - 2. A teacher wants to investigate whether there is a difference ...

Statistics - A student group claims that first-year students at a university ...

statistics - The Office of Student Services at a large western state university ...

stats - A survey was done recently by the Royal Bank with Ipsos Reid (reported ...

math help - A survey was done recently by the Royal Bank with Ipsos Reid (...