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Lab2-Descriptive-Stats-2010

# Lab2-Descriptive-Stats-2010 - 2.0 Calculate the following...

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INEN 314 Lab Exercise: 2 Descriptive Statistics The following table contains observed data for service times at a local hamburger place. These times include placing an order, paying and then getting a hamburger. 0.02 4.04 0.37 4.85 8.22 3.14 2.19 1.39 4.85 2.66 2.39 1.04 1.95 1.65 5.02 4.75 0.99 4.06 3.27 2.13 1.52 3.04 16.44 2.83 5.03 2.66 2.54 3.67 3.45 6.71 4.45 11.51 2.14 1.58 5.49 1.85 1.92 3.78 2.57 7.23 3.19 0.71 0.83 2.28 7.66 1.99 3.73 6.88 3.46 4.39 2.50 6.03 10.29 3.07 7.12 3.26 4.39 3.34 3.41 4.73 7.98 0.94 8.52 7.78 3.79 1.16 5.00 0.86 7.02 4.95 2.66 6.03 4.21 4.19 5.08 3.29 3.57 3.37 2.80 2.82 1.03 5.16 3.35 5.83 5.97 4.56 4.05 5.79 2.34 0.72 2.10 7.15 6.64 1.36 10.79 0.89 2.82 5.08 2.12 0.51 3.23 3.43 3.47 2.07 2.93 4.46 2.08 4.33 3.09 0.84 5.12 6.36 1.15 1.0 Calculate the Mean, Variance and Standard Deviation of this data by hand. For the variance, use both (a) Second Moment about the origin method (2) the “shortcut” method (3) Calculate the “Squared Coefficient of Variation” (4) Calculate the measure of “Skewness” (5_ Calculate the measure of “Kurtosis”.

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Unformatted text preview: 2.0 Calculate the following statistical descriptors for this data using the above values using (1) Minitab and (2) EXCEL…do all results match ? a. minimum b. maximum c. mean d. median e. mode f. variance g. standard deviation h. Squared coefficient of variation i. skewness j. kurtosis 3.0 Define and give an example of the following scales of measurement. (1) Nominal (2) Ordinal (3) Interval and (4) Ratio. Which scale would most likely be used in general engineering applications? 4.0 Using the full set of data, do the following. 3.1 Plot a Minitab histogram with 10 cells of width 1.50. Identify a possible probability density function for this data. 3.2 Using the full set of data, calculate a “pie chart” from the histogram data 3.3 Plot an EXCEL histogram with 10 cells of width 1.50. Identify a possible probability density function for this data....
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Lab2-Descriptive-Stats-2010 - 2.0 Calculate the following...

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