Topic5-Treatment-of-Data

Topic5-Treatment-of-Data - Treatment of Data Outline: 1. 2....

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1 Treatment of Data 1. Data Summary and Display 2. Random Sampling 3. Stem-and-Leaf Diagram 4. Box Plots 5. Time Sequence Plots 6. Probability Plots Outline:
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2 1 Data Summary and Display Definition (1)
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3 1 Data Summary and Display Example 1
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4 1 Data Summary and Display Figure 1 The sample mean as a balance point for a system of weights.
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5 1 Data Summary and Display Population Mean For a finite population with N measurements, the mean is The sample mean is a reasonable estimate of the population mean . (2)
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6 1 Data Summary and Display Definition (3)
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7 1 Data Summary and Display How Does the Sample Variance Measure Variability? Figure 2 How the sample variance measures variability through the deviations . x x i -
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8 1 Data Summary and Display Example 2
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9 1 Data Summary and Display
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10 1 Data Summary and Display Computation of s 2 (4)
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11 1 Data Summary and Display Population Variance When the population is finite and consists of N values, we may define the population variance as The sample variance is a reasonable estimate of the population variance . (5)
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12 1 Data Summary and Display Definition (6)
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13 2 Random Sampling Definitions
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14 2 Random Sampling Figure 3 Relationship between a population and a sample.
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15 2 Random Sampling Definitions
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16 3 Stem-and-Leaf Diagrams Steps for Constructing a Stem-and-Leaf Diagram
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17 3 Stem-and-Leaf Diagrams Example 4
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18 6-3 Stem-and-Leaf Diagrams
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19 3 Stem-and-Leaf Diagrams Figure 4 Stem-and- leaf diagram for the compressive strength data in Table 2.
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20 3 Stem-and-Leaf Diagrams Example 5
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3 Stem-and-Leaf Diagrams Figure 5 Stem-and- leaf displays for Example 5. Stem: Tens digits. Leaf: Ones
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This note was uploaded on 04/08/2008 for the course STAT 122 taught by Professor Elkamel during the Spring '08 term at Waterloo.