what is comparable data what is a vendor analysis what tests can i perform to rank different vendors what is comparable quality of data what is the statistical test for comparing financial markets what is the benchmark of financial data comparing price with market price how to compare and quantify quality how to test vendor pricing what statistical test can be performed to rank vendors in terms of being close to prices and quantify the quality of data? what is the quality of market data? comparing equities vs vendors how do i quantify quality of data? what is the standard for comparing and quantifiable data what statistical tests do you perform how to measure the quality of the data how to compare vendor quotes which market is the gold standard what measures the quality of a market why do people compare pricing?