$10.83 because you need to divide 6.50 by .6 to get that answer approximately.
For margin of error to be a maximum of 3:
3 = z*(SD / sqrt(n)), where z is the z-score, SD is the standard deviation and n is the sample size.
z = 1.96 for a 95% confidence interval, and we are given SD = 15.
3 = 1.96*15/sqrt(n)
sqrt(n) = 9.8
n = 96.04 ~ 96 commercials.
Answer:
12,548 rounded to the nearest thousand is 13,000 and 4,685 rounded to the nearest thousand is 5,000
Step-by-step explanation:
(6/5.55) * 100 = 108.11 %
The percent error is 108.11 %
