Answer:
95% Confidence interval for the mean

Step-by-step explanation:
We have to calculate a 95% confidence interval for the mean of a finite population.
The error is multiplied by the following finite population correction factor:

The standard deviation can be estimated as

The 95% confidence interval has a z value of 1.96, so it becomes:

Answer:
a= 40
area=length*width
area=8*5
area=40
hope this helped!
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The answer correct answer is 80.5