Trend or cyclical pattern

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The following table shows a portion of the percent change in the consumer price index (CPI) for the United States from 1980 through 2008; the full data set can be found on the text website, labeled US CPI. Use the method of runs above and below the median with a significance level of 5% to test the null hypothesis of random ness against the alternative that there is a trend or cyclical pattern.

837_trend or cyclical pattern.png

Reference no: EM131797927

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