Find the minimum sample size needed to be 99% confident that the sample's variance is within 30% of the population's variance.

The Minimum sample size table is attached below

Step-by-step explanation:

From the question we are told that:

Confidence Interval

Variance

Generally going through the table the

Minimum sample size is

y=mx+b is the final answer!   : )

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: