Introduction to Sustainable Civil Engineering Design
1st Edition
ISBN: 9780134013916
Author: Neumann
Publisher: PEARSON
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The next time you make a trip to a supermarket, ask the manager if you can measure the mass of at least 10 cereal boxes of your choice. Choose the same brand and the same size boxes. Tell the manager this is an assignment for a class. Report the average mass, variance, and standard deviation for the cereal boxes. Does the manufacturer’s information noted on the box fall within your measurement?
Repeat Problem using three other products, such as cans of soup, tuna, or peanuts.
The next time you make a trip to a supermarket, ask the manager if you can measure the mass of at least 10 cereal boxes of your choice. Choose the same brand and the same size boxes. Tell the manager this is an assignment for a class. Report the average mass, variance, and standard deviation for the cereal boxes. Does the manufacturer’s information noted on the box fall within your measurement?
Using the information below, use Excel and show the equation on how to solve for each:
#3: The data below was generated to assess the precision of an analytical balance using a NIST-certified 10.0000 g calibration mass.
Use it to compute the mean, standard deviation, upper and lower warning limits, and upper and lower action limits. Be sure to keep at least one guard digit in your calculations, and report the results to the correct number of significant figures.
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- Please solve the following exercisearrow_forwardExplain and give examples of systematic errors and random uncertainties that may occur when using these types of equipment: a weighing scale, a thermometer, a colorimeter and a measuring cylinderarrow_forwardAnalyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) Below 19.4 oC, hydrometer reading increases (B) Above 19.4 oC, hydrometer reading decreases 10.arrow_forward
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