Friday

August 22, 2014

August 22, 2014

Posted by **John** on Friday, July 16, 2010 at 9:22pm.

- Statistics -
**John**, Friday, July 16, 2010 at 9:28pmI did 2.33x.29/.09 then sqared and got 56.3 this good?

(ZcO/E)^2 =n is this right?

- Statistics -
**MathGuru**, Monday, July 19, 2010 at 9:18pmFormula:

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

...where n = sample size, z-value will be 2.33 using a z-table to represent the 98% confidence interval, sd = 0.29, E = 0.09, ^2 means squared, and * means to multiply.

Your answer looks correct! Good job.

**Related Questions**

Statistics - Suppose a certain species bird has an average weight ofx=3.55 grams...

Stats - Allen's hummingbird (Selasphorus sasin) has been studied by zoologist ...

Statistics - The eggs of a species of bird have an average diameter of 23 mm and...

Statistics - The eggs of a species of bird have an average diameter of 23 mm and...

UNM - Suppose that the average weight of students in a statistics class is 75.5 ...

statistics - The weights of individual nails produced by the 'Hammer 'n Nail' ...

Statistics - In the library on a university campus, there is a sign in the ...

Statistics - In the library on a university campus, there is a sign in the ...

College Algebra - find the average weight in pounds of a type of bird of your ...

Calculus Help Please!!! - Ornithologists have determined that some species of ...