The annual maximumflow data for two different periods of record for Genesee River atRochester, NY, are given below. Determine whether there ishomogeneity in the sequence of data of two periods, at the 2.5%level of significance.

Year                 Discharge (m3/s)

Year                 Discharge (m3/s)

1948                          21,600 1949                          16,400 1950                          33,100 1951                          20,200 1952                          17,700 1953                          17,100 1954                          17,500 1955                          19,100 1956                          24,300 1957                          17,000 1958                          14,900 1959                          17,700 1960                          25,800

2001                          20,300 2002                          23,300 2003                          13,800 2004                          28,200 2005                          19,400 2006                          18,200 2007                          16,300 2008                           18,000 2009                          20,000 2010                          17,800 2011                          18,400 2012                          11,500 2013                          21,000 2014                          14,900