11 May Shell Rotella T6 Is A Synthetic 5W-40 Engine Oil, Where 40 Is The Oil Weight …
Shell Rotella T6 is a synthetic 5W-40 engine oil, where 40 is the oil weight. SAE specifies that 40 weight oil have a viscosity between 12.5 and 16.3 cSt. An unopened barrel of T6 was sampled with n = 36 and the viscosity measured. The results are provided in the Oil dataset on Canvas. Use Excel or (or any means you like) to find: Viscosity a. The sample mean (x̅) and standard deviation (s) 13.07 b. The 95 percent CI for µ 12.45 c. The 95 percent CI for σ2 12.52 14.29 12.36 13.74 12.83 13.15 12.6 12.58 13.09 12.81 12.68 12.6 13.97 12.76 12.81 12.17 12.28 12.52 14.35 13.58 12.07 12.87 12.77 12.55 12.33 12.63 12.5 12.36 12.65 12.67 13.53 12.81 12.82 13.39
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