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A surveying instructor sent all the 40 students in his class out to measure a distan between two points marked on a runway. The students working in groups of four car up with 10 different measurements as follows: 920.45, 921.05, 921.65, 920.25, 920.1

A surveying instructor sent all the 40 students in his class out to measure a distan between two points marked on a runway. The students working in groups of four car up with 10 different measurements as follows: 920.45, 921.05, 921.65, 920.25, 920.1

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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5. A surveying instructor sent all the 40 students in his class out to measure a distance between two points marked on a runway. The students working in groups of four came up with 10 different measurements as follows: 920.45, 921.05, 921.65, 920.25, 920.15, 921.85, 921.95, 920.45, 921.15, and 921.35 meters. Assuming these values are equally reliable and that variations result only from accidental errors, determine the relative precision of single measurement and the relative precision of the mean.
Transcribed Image Text:5. A surveying instructor sent all the 40 students in his class out to measure a distance between two points marked on a runway. The students working in groups of four came up with 10 different measurements as follows: 920.45, 921.05, 921.65, 920.25, 920.15, 921.85, 921.95, 920.45, 921.15, and 921.35 meters. Assuming these values are equally reliable and that variations result only from accidental errors, determine the relative precision of single measurement and the relative precision of the mean.
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