Data sets have been obtained of advertised prices published in the current issues of local papers for 2 different towns in your area for a sample of houses for sale.
Mean prices (£'s): A=100,000 B=105,000
Variance of mean price (£ x £'s): A=12,400,000 B=12,500,000
Sample size: A=50 B=50
It is required that a 95% confidence interval has size +/-£1000 assuming the variances remain unchanged, calculate the size of samples required for such a confidence interval. (You can assume sample size of town A and B are of equal size).
Thanks for any help.
2006-11-12 00:08:40 · 1 answers · asked by joemoran7 2 in Science & Mathematics ➔ Mathematics
Joe, i'm sorry but i have no idea! i have some sites that may help, though!
wikipedia.org
www.webmath.com
mathforum.org/dr.math/
that is where i usually go for help. sorry i couldn't be any more helpful! and good luck
2006-11-12 10:25:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋