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# Exercises 9-12 refer to the following table which lists carbon dioxide concentrations (in parts per million) for each year from 1880 to 2009 with

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Exercises 9-12 refer to the following table which lists carbon dioxide concentrations (in parts per million) for each year from 1880 to 2009 with projection values for the last four years. Construct a run chart for the 130 values. Does there appear to be a pattern suggesting that the process is not within statistical control? What are the practical implications of the run chart? decade 00 01 02 03 04 05 06 07 08 09 1880 290.7 291.0 291.2 291.4 291.6 291.9 292.1 292.3 292.6 292.9 1890 293.2 293.5 293.8 294.1 294.3 294.6 294.9 295.2 295.5 295.8 1900 295.6 295.3 295.1 294.8 295.9 296.9 297.5 298.1 298.6 299.2 1910 299.4 299.6 299.9 300.1 300.3 300.5 300.7 300.9 301.1 301.2 1920 301.4 301.6 302.3 302.9 303.6 304.2 304.9 305.5 305.6 305.8 1930 305.9 306.1 306.2 306.3 306.5 306.6 306.8 306.9 307.1 307.3 1940 307.4 307.6 307.7 307.9 308.4 308.9 309.3 309.8 310.3 310.8 1950 311.3 311.7 312.2 312.7 313.2 313.7 314.3 314.8 315.3 316.0 1960 316.9 317.6 318.5 319.0 319.5 320.1 321.3 322.1 323.1 324.6 1970 325.7 326.3 327.5 329.6 330.3 331.2 332.2 333.9 335.5 336.9 1980 338.7 340.0 341.1 342.8 344.4 345.9 347.1 349.0 351.4 352.9 1990 354.2 355.6 356.4 357.1 358.9 360.9 362.6 363.8 366.6 368.3 2000 369.5 371.0 373.1 375.6 377.4 379.6 379.6 381.2 382.8 384.4

Exercises 9-12 refer to the following table which lists carbon dioxide concentrations (in parts per
million) for each year from 1880 to 2009 with projection values for the last four years....

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