U.S. says probe found problem in seasonal adjustment of GDP data

By Lucia Mutikani WASHINGTON (Reuters) - U.S. government statisticians have found evidence that efforts to adjust the country's measure of economic growth for seasonal fluctuations have not been fully successful. The Bureau of Economic Analysis, the government agency that constructs gross domestic product data, said this week that a component-by-component investigation found evidence in quarterly GDP data over different time spans. "We did find some evidence of residual seasonality both over the