Problems 543
and 1987. Use it to test the hypothesis that the successive El Nino magnitudes ̃
constitute a random sample.Year and Magnitude ( 0 =moderate, 1 =strong ) of Major El Niño Events, 1800–1987
Year Magnitude Year Magnitude Year Magnitude
1803 1 1866 0 1918 0
1806 0 1867 0 1923 0
1812 0 1871 1 1925 1
1814 1 1874 0 1930 0
1817 0 1877 1 1932 1
1819 0 1880 0 1939 0
1821 0 1884 1 1940 1
1824 0 1887 0 1943 0
1828 1 1891 1 1951 0
1832 0 1896 0 1953 0
1837 0 1899 1 1957 1
1844 1 1902 0 1965 0
1850 0 1905 0 1972 1
1854 0 1907 0 1976 0
1857 0 1911 1 1982 1
1860 0 1914 0 1987 0
1864 1 1917 1