Answer 3 questions

Part 1 Measuring Measurement The machine key was measured using several instruments in the Devices Uncertainty data table above, with some degree of inaccuracy. The data table now includes each device's degree of uncertainty as well. Cm Ruler 7.5 + 0.5cm For the machine key itself, the measurement provided was 3 inch, Mm Ruler 7.5 + 0.7 cm but 0.01 inches longer or 0.03 inches shorter (3 +0.01/-0.03) To make the error bar symmetrical: I shifted the measurements 0.01 Calipers (mm) 76.12+ 0.03mm lower (2.99 0.02 inch) Machine Key 2.99+ 0.2 in Uncertainty calculation for MM (given by 6q = V(8x") + ... + (62") + (bu ) + ...+ (ow') manufacturer) Figure 1 Table I Elli 6q = V(0. 05 ) + (0.05") 6q = . 07 -Figure 1 reporsents discrepancy diagram between various measuring devices. The uncertainty for the measuring device (calipers) is really small to be visibles to the eyes. Devise and perform an experiment to answer this question: Do any of the measurements that you will make using different measuring tools strongly suggest that the length of your machine key is within the tolerance quoted by the manufacturer? 2-An analysis of the Discrepancy Diagram you created. Discuss the significance of the discrepancies (accompanied by calculations) Machine Statement: Your machine key is supposed to be 3 inches long. between the measured values and the However, as you know, making something exactly a given length is manufacturer's value, and the respective impossible. The company that sold us the machine keys knows this as uncertainties. well and reported a tolerance for that length. The company states that 3-Regardless of whether the discrepancy is the machine key might be O.Ol inches longer or 0.03 inches shorter than the quoted length. significant or not, make sure you address the question asked above: confirming the tolerance