D 7.5
Question 3
10 Point
Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch's 200 cows. Instead
weighing all of the cows:
- Robert weighs 25 cows and gets an average weight of 1,550 pounds (stdev = 50)
• Val weighs 100 cows and gets an average weight of 1 380 pounds (stdev = 50)
IB
what is Val's margin of error, rounded to the nearest whole number (The formula is 1.96 (sta dev) VN
A) 0.98
B
3.92