Two owner of a cattle ranch, Robert and Val, want to find the average weight for the ranch’ 200 cow. Intead of weighing all of the cow:

Robert weigh 25 cow and get an average weight of 1,550 pound (tdev = 50)
Val weigh 100 cow and get an average weight of 1,380 pound (tdev = 50)

What i Val’ margin of error, rounded to the nearet whole number? (The formula i 1. 96 (td dev) / quare root of N

In a random survey sample, a margin of error is a statistical measurement that takes into account the discrepancy between actual and anticipated findings. Simply said, you may determine the degree of unpredictability in data and research results using the margin of error.

The margin of error formula:

The margin of error is given by the following equation:

M = 1.96(s/√n)

Where,

s is the standard deviation.

n is the sample size.

Here, we have

Given

The standard deviation is 50, hence s = 50

Val weighed 100 cows, hence n = 100

By applying the margin of error formula and we get

M = 1.96(50/√100)

M = 1.96(50/10)

M = 9.8

Hence, Using its formula, it is found that Val's margin of error is 9.8 pounds.

To learn more about the margin of error from the given link

https://brainly.com/question/14396648

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