The Turbine Oil Oxidation Test TOST and the Rotating Bomb Ox

The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different procedures for evaluating the oxidation stability of steam turbine oils. An article reported the accompanying observations for x = TOST time (hr) and y = RBOT time (min) for 12 oil specimens. TOST 4200 3575 3750 3700 4050 2745 4870 4500 3450 2725 3750 3300 RBOT 370 345 375 305 350 195 400 370 285 230 345 285 Calculate the value of the sample correlation coefficient. (Round your answer to four decimal places.) r=

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