A report includes these predictable peaks and valleys. In contrast, seasonally adjusted data uses complex mathematical models (like X-12-ARIMA ) to "smooth out" these bumps, allowing analysts to see if a change is part of a larger trend or just the usual holiday rush. When Is NSA Data Most Important?
She found them at the Snowy Owl Inn, a dusty motel off Highway 200. Forty-seven people, all of them statisticians, surveyors, and field agents from the federal government. They weren’t filing for unemployment. They were filing incorrect claims as part of a stress test. not seasonally adjusted
By dawn, she reached a truck stop with a payphone. She called the one person who’d understand: the old archivist in the Salt Lake City Federal Reserve basement. He still kept not-seasonally-adjusted records on microfiche. A report includes these predictable peaks and valleys