Answer:
x = 59°
Step-by-step explanation:
The angle marked 115° and the angle that is the sum of angles x and 56° are alternate interior angles, so have the same measure:
115° = x +56°
59° = x . . . . . . . subtract 56°
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!!!! : )
Answer:
6
Step-by-step explanation:
