What sample size is needed so that the length of the interval is $60 with 95% confidence? We Assume: σ = $150.
Showing Work:
n ======> is the sample size we want to find:
N = ( z a/2^σ / E )^2
= ( 1.96 * 150 / 30 )^2 (margin of error is 1.96 times the standard error):
Answer: =======> 96.04 ≈ 97
Hope that helps!!!! : )
The odds against drawing a nine is 48/52
Answer:
$30 per day
Step-by-step explanation:
2,100 divided by 70 is 30
Answer:
14
Step-by-step explanation:
2x-9=x+5
+9 +9
2x=14+x
-x -x
x=14