helps to quantify the variation in a measured variable as it occurs during any one test or batch while the operating conditions are held under nominal control. Instructions Prior to this laboratory exercise students must read material from Chapter 1, Sections 4.1-4.6, 5.1-5.6 of the Textbook [1], including examples of the problems solution, corresponding handout materials [2], current manual and slides [3} and requirements for laboratory report (Appendix 1). Measurement Experimentation Lab Procedure: Each student has to measure inner and outer diameters and width of the set of a steel ball bearings (ID, OD, and WD) . The number of the bearings (N) in the set will be determined. Stage A - Measurements (in class) 1. Perform the measurement of the dimensions (ID, OD, WD) of each bearing using caliper. Use metric system. 2. Put the data ( Number of bearing, ID, OD, WD) in the Table 1. Stage B - Data Analysis (at home) 1. Calculate the number of intervals required for ID, OD and WD statistical analysis. Put the intervals in the Table 2: (Bin (interval # ) versus value of the interval). Develop a histograms for the distribution of number of occurrences (a) and frequency distribution (b) histograms for the data given in Tables 1 2. Discuss the data and describe the overall shape of the histogram. Show the sample of your calculations. 2. For the data in the Table 1 determine the sample mean value, standard deviation, and standard deviation of means. Show all formulas and all the results of calculations. Put the results in the Table 3. Show the sample of your

Bearing # I.D. O.D. W.D. 2 34 12.74 34.85 11.1 11 12.81 34.88 11.07 4 5 12.83 34.87 11.1 5 23 12.8 34.91 11.08 6 4 12.8 34.52 11.09 7 19 12.73 34.91 11.08 8 15 12.81 34.95 11.07 9 29 12.85 34.85 11.11 10 25 12.7 35 11.08 11 24 12.77 34.92 11.16 12 14 12.17 34.89 11.08 13 3 12.78 34.92 11.08 14