Engineering, 22.09.2020 21:01 nickwwe13
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 day. 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.
d. What trend do you observe based on the data? What could cause this trend?"
Answers: 2
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Given asphalt content test data:
a. Calculate the overall mean and standard deviation for the entir...
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