The following table shows a portion of the growth rate in the gross domestic product (GDP) for China from 1980 through 2008. Use the method of runs above and below the median with a significance level of 5% to test the null hypothesis of randomness against the alternative that there is a trend or cyclical pattern.

Year........................... GDP

1980..............................7.8

1981..............................5.2

⋮ .....................................⋮

2008..............................9.0