The following table shows a portion of the percent change in the consumer price index (CPI) for the United States 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................... CPI

1980................... 12.5

1981.....................8.9

⋮........................... ⋮

2008..................... 0.1