c) Calculate the percentage error between average length obtained by student 2 and the standard value using formula (1). (1 point) d) Calculate the percentage difference for average lengths obtained by students 1 and 3 using formula from manual. (1 point) e) Do any of the three students have data that suggest the possibility of a systematic error? If so, state which student it is, and state how the data indicate your conclusion. (1 point) 4. Look at the example graph provided at the end of this lab manual to see how your graph should look. Make a graph of Force in N (on Y axis) as a function of mass in kg (on X axis). Make the graph in MS EXCEL (or similar program, NO GRAPH PAPER or other by hand method) (6 points: labels, units, scale, data points), perform the trend line with the trend line equation (2 point) and paste it into your report. Force [N] 74.20 127.5 171.3 215.3 262.1 Mass [kg] 7.870 12.47 17.58 22.98 26.49 dictions: On Xx Accessibility: Investigate D' FOCU 9 Search a w hp - 4+ 10 144 pre sc $ & 4 5 6 8 R T Y U O P F G H Kcasurements. (5 points) Student LI L L LA L SD Student 1 1.4750 1.4759 1.4756 1.4749 1.4754 0.00042 0.00040 Student 2 1.4719 1.4725 1.4705 1.4719 1,4717 0.00074 0.0001 Student 3 1.4727 1.4718 1.4722 1.4715 1.4719 0.00051 0.0003 Note that the actual length of the rod is determined by a laser measurement technique to be 1.4716 m (this should be considered the standard value). a) State how one determines the accuracy of a measurement. Apply your idea to the measurements of the three students above and state which student has the most accurate measurement. (1 point) Since accuracy and standard deviation are inversely proportional to each other, the higher the standard deviation the lesser the accuracy is and vice versa. D Focus Accessibility Investigate 9 Search hp ins 16 0 f7 18 + 19 144 10 DDI prt sc de 0 5 & 6 7 8 oac T Y U O P G H K L B N M