Suppose the population standard deviation is σ = 5 σ=5 , an SRS of n = 100 n=100 is obtained, and the confidence level is chosen to be 98%. The margin of error for estimating a mean μ μ is given by:

The margin of error for estimating a mean μ is 1.1625.

Step-by-step explanation:

We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of .

So it is z with a pvalue of , so

Now, find the margin of error M as such

So

The margin of error for estimating a mean μ is 1.1625.

351.23

step-by-step explanation:

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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