Oil Quality and Price

question 280

Essay

Oil Quality and Price
Quality of oil is measured in API gravity degrees--the higher the degrees API,the higher the quality.The table shown below is produced by an expert in the field who believes that there is a relationship between quality and price per barrel. A partial Minitab output follows: Descriptive Statistics Variable N Mean StDev SE Mean Degrees 13 34.60 4.613 1.280 Price 13 12.730 0.457 0.127 Covariances Degrees Price Degrees 21.281667 Price 2.026750 0.208833 Regression Analysis Predictor Coef StDev T P Constant 9.4349 0.2867 32.91 0.000 Degrees 0.095235 0.008220 11.59 0.000 S = 0.1314 R−Sq = 92.46% R−Sq(adj)= 91.7% Analysis of Variance Source DF SS MS F P Regression 1 2.3162 2.3162 134.24 0.000 Residual Error 11 0.1898 0.0173 Total 12 2.5060
-{Oil Quality and Price Narrative} Draw a histogram of the residuals.

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Definitions:

Conflicts Of Interest

Situations where an individual's or entity's personal interests may potentially interfere with their professional duties or responsibilities.

Bribe

An illicit payment made to influence someone's actions in favor of the giver.

Organisational Resources

Assets, capabilities, organisational processes, firm attributes, information, and knowledge controlled by an organisation that enable it to improve its efficiency and effectiveness.

Underlying Beliefs

Fundamental convictions or assumptions that influence one's behavior and perception of the world, often unconsciously.