Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch's 200 cows. Instead of 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) ● What is Val's margin of error, rounded to the nearest whole number? (The formula is 1.96 (std dev)/√N A 9.80 B 3.92 C 2.45 D 1.01 ?
Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch's 200 cows. Instead of 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) ● What is Val's margin of error, rounded to the nearest whole number? (The formula is 1.96 (std dev)/√N A 9.80 B 3.92 C 2.45 D 1.01 ?
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter1: Foundations
Section1.10: Systems Of Measurement
Problem 1.287TI: Laura gave birth to triplets weighing 3 pounds 3 ounces, 3 pounds 3 ounces, and 2 pounds 9 ounces....
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Transcribed Image Text:Two owners of a cattle ranch, Robert and Val, want to find
the average weight for the ranch's 200 cows. Instead of
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)
What is Val's margin of error, rounded to the nearest
whole number? (The formula is 1.96 (std dev)/√N
A
9.80
B 3.92
с 2.45
D 1.01
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