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Unformatted text preview: Outline Statistical Graphics Estimators Probability Plots Lecture 22Lab Chapter 6: Empirical Statistics: Data Graphics and Estimators Michael Akritas Michael Akritas Lecture 22Lab Chapter 6: Empirical Statistics: Data Graphics Outline Statistical Graphics Estimators Probability Plots Statistical Graphics StemandLeaf Diagrams Histograms Pie Charts Scatter Plot and 3D Scatter Plot Estimators Descriptive Statistics and the Box Plot Correlation and Regression Probability Plots Michael Akritas Lecture 22Lab Chapter 6: Empirical Statistics: Data Graphics Outline Statistical Graphics Estimators Probability Plots StemandLeaf Diagrams Histograms Pie Charts Scatter Plot and 3D Scatter Plot MPA Data I A study of strength properties of highperformance concrete, with super plasticizers and certain binders, obtained flexural strength measurements of 27 concrete beams. I The measurements are given at: http://www.stat.psu.edu/ mga/401/labs/07.s/lab4/ MPA.data.txt I Enter the data in C1 and do a stemandleaf display as follows: Graph > Stem and leaf > Select C1, OK Michael Akritas Lecture 22Lab Chapter 6: Empirical Statistics: Data Graphics Outline Statistical Graphics Estimators Probability Plots StemandLeaf Diagrams Histograms Pie Charts Scatter Plot and 3D Scatter Plot Histograms as Estimators of the PDF I Graph > Histogram > Select Simple > Select C1, OK I Minitab chooses the groups (bins) automatically. For different bins, doubleclick on the xaxis, choose Binning in the dialogue box that opens, and input the midpoints of the bins, or enter only the desired number of bins. I Histograms as estimators of the PDF: Generate random data from the Gamma(2,1) distribution and see how the resulting histogram approximates the Gamma(2,1) PDF: Calc > Random Data > Gamma > Generate 50 rows of data, Store in column(s)C2, Shape parameter 2, Scale Parameter 1, OK Graph > Histogram, With Fit, OK > Graph variables: C2 , OK Michael Akritas Lecture 22Lab Chapter 6: Empirical Statistics: Data Graphics Outline Statistical Graphics Estimators Probability Plots StemandLeaf Diagrams Histograms Pie Charts...
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This note was uploaded on 03/19/2009 for the course STAT 401 taught by Professor Akritas during the Spring '00 term at Pennsylvania State University, University Park.
 Spring '00
 Akritas
 Statistics, Probability

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