Mathematics, 09.08.2021 01:00 rosenthaljaneiah2010

Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50)
Val weighs 100 cows and gets an average weight of 1,420 pounds (stdev 50)

What is the margin of error for Jo’s sample? (The formula is 1.96 straight x left parenthesis StdDev right parenthesis divided by square root of straight N)

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Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows....