22. The following table (taken from Quinn, W. H., Neal, T. V., and Antu˜nez de Mayolo, 1987, “El Ni˜no occurrences over the past four-and-a-half centuries,”

Journal of Geophysical Research, 92 (C13), pp. 14,449–14,461) gives the years and magnitude (either moderate or strong) of major El Ni˜no years between 1800 and 1987. Use it to test the hypothesis that the successive El Ni˜no magnitudes constitute a random sample.

Transcribed Image Text:

Year and Magnitude (0=moderate, 1 = strong) of Major El Nio 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 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 1860 0 1914 0 1987 0 1864 1 1917 1