Unformatted text preview: through the given data points. USE “polyﬁt” command. (b) submit (print and attach) your MATLAB code and MATLAB ﬁgure showing data points (Circles) and the best-ﬁt line. 3. Using EXCEL (a) Use Excel to calculate slope and y-intercept of the best-ﬁt line passing through the given data points. Use “add trendline” feature in EXCEL. (b) submit (print and attach) your EXCEL chart with the equation and R 2 value printed on it. 2. (10 points) To measure a speed of a variable-speed motor, a standard hexagonal nut is ﬁtted on its shaft to drive a magnetic pick-up. The output on an oscilloscope screen shows 20 positive peaks in four divisions. The scope setting is 0.5 s/div. Calculate the shaft speed in rpm....
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- Fall '10
- data points, Errors and residuals in statistics