Question

How to solve this?

Answer 1

what ya gotta do is this...

Answer 2

one sec let me pull up my formulas here

Answer 3

\[n=\frac{z_{a/2}^2(.25)}{E^2}\]

Answer 4

ya that's the one

Answer 5

lol

Answer 6

hahaha

Answer 7

what is the meaning fo this??

Answer 8

im trying to stay ahead of the curve in stats class :)

Answer 9

or maybe im just procrastinating my report on germany thats due on montag

Answer 10

nono i mean the equation...

Answer 11

oh; well, its the product of the square of the z-score (why?) and the unknown proportions; divided by square pf the margin of error

Answer 12

it used to estimate the needed sample size for some reason

Answer 13

when the proportion is known; .25 becomes p*(1-p)

Answer 14

oO

Answer 15

i know right? :)

But elementary stats i spose cant get into the whys and hows of it all