Arandom sample of size 200 is drawn from a large population. the population standard deviation is 1.2. the sample mean is 15.8. estimate the size of the population mean including margin of error.

Step-by-step

N=sample size = 200

sigma = population standard deviation = 1.2

s=Sample mean = 15.8

Best estimate of population mean = 15.8

standard error = sigma / sqrt(N)

= 1.2/sqrt(200)

= 0.08485

Therefore

estimate of population mean = 15.8 +/- 0.0848

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.