1) Government agencies and logistics organizations routinely track performance measures in the transportation sector. In the railroad industry, the most commonly monitored measures per time period include the number of cars operated, average speed, and terminal dwell time for major carriers. One such major carrier is BSNF Railway Company. BSNF operates one of the largest freight railroad networksin North America. Consider nine consecutive weeks of data on the average dwell time (hours) for BSNF?operated trains at the Denver, Colorado, terminal from the week ending June 1, 2018, to the week ending July 27, 2018:

Year Temp Year Temp Year Temp Year Temp Year Temp Year Temp 1856 -6.375 1878 6.635 1966 -6.288 1934 -6.126 1962 6.616 1996 6.297 1851 -6.223 1879 -6.232 1967 -6.47 1935 -6.173 1963 6.648 1991 6.254 1852 -6.224 1886 1936 1853 -6.271 1881 1937 1854 -6.246 1882 1938 1855 -6.271 1883 1939 1856 -6.352 1884 1946 1857 -6.46 1885 1941 1858 -6.466 1886 1942 1859 -6.286 1887 1943 1866 -6.346 1888 1944 1861 -6.469 1889 1945 1862 -6.522 1896 1946 1863 -6.276 1891 1947 1864 -6.49 1892 1948 1865 -6.27 1893 1949 1866 -6.245 1894 . . . 1956 . 1867 -6.314 1923 -6.272 1979 6.656 2667 6.493 1868 -6.231 1896 -6.189 1924 -6.293 1952 6.63 1986 6.692 2668 6.395 1869 -6.262 1925 -6.213 2669 6.566 1876 -6.275 1926 -6.166 1982 6.612 2616 6.559 1871 -6.333 1899 -6.291 1927 -6.21 1955 -6.19 1983 6.193 2611 6.422 1872 -6.227 1928 -6.268 2612 6.47 1873 -6.363 1929 -6.35 1985 -6.629 2613 6.499 1874 -6.374 1962 -6.467 1936 -6.136 1958 6.646 1986 6.646 2614 6.567 1875 -6.397 1963 1959 2615 6.746 1876 -6.38 1964 1966 1877 -6.676 1965 1961 Uptime 83.483 68.933 73.467 86.267 13.5 32.617 331.75 84 43.833 17.783 624.819 86.65 37.967 99.15 29.35 126.417 49.083 24 38.917 13.083 42 32.533 14.45 1.5 50.467 83.883 97.5 64.534 36.55 65.75 38.7 40.95 34.083 51.267 58.75 39.167 170.39 61.917 8.75 100.64 103.05 5.25 19.683 30.283 75.917 28.683 270 22.483 74.817 1.233 88.1 27.667 97.183 54.5 85.5 86.883 4.667 54.083 28.717 12.233 217.583 81.817 1.183 113.55 3.8 9.667 168.2 55.483 5.867 15.633 44.4 15.417 142.6 4.833 12.567 1 95.917 78.4 40.883 37.683Month Visitors Dec 284433 Jan 201322 Feb 202821 Mar 230650 Apr 272010 May 401001 Jun 515688 Jul 648231 Aug 593677 Sep 521144 Oct 332176 Nov 192756 Dec 295823 Jan 199789 Feb 218467 Mar 252823 Apr 267250 May 405069 Jun 544496 Jul 675979 Aug 606261 Sep 534486 Oct 335863 Nov 205887 Dec 309112 Jan 214619 Feb 225820 Mar 252835 Apr 270234 May 441557 Jun 559491 Jul 695452 Aug 628547 Sep 537075