Given asphalt content test data: a. Calculate the overall mean and standard deviation for the entire test period. b. The contract specifications require an average asphalt content of 5.5% +/- 0.5% every Plot the daily average asphalt content. Show upper and lower control limits. c. Do all of these samples meet the contract specifications? Explain your answer. What trend do you observe based on the data? What could cause this trend? Date Sample Asphalt Numb Conte nt 06

Given asphalt content test data: a. Calculate the overall mean and standard deviation for the entire test period. b. The contract specifications require an average asphalt content of 5.5% +/- 0.5% every Plot the daily average asphalt content. Show upper and lower control limits. c. Do all of these samples meet the contract specifications? Explain your answer. What trend do you observe based on the data? What could cause this trend? Date Sample Asphalt Numb Conte nt 06

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter18: Bituminous Materials

Section: Chapter Questions

Problem 16P

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Q5: A highway lab performed a stability test on asphalt cores, it was found that the average stability and standard division are 15.3 and 2.1 kN respectively. For a set of samples contents 33 cores; determine: 1) the probability for getting exactly 15 kN, 2) probability of 12.116.1, 4) Probability of 11
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