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Crescent Oil has developed three new blends of gasoline – Blend X, Blend Y and Blend Z, and must decide which blend or blends to produce and distribute. A study of the miles per gallon ratings of the three blends is being conducted to determine if the mean ratings are the same for the three blends.
Five automobiles- 1, 2 3, 4 and 5, have been tested using each of the three gasoline blends and the miles per gallon ratings are shown on the accompanying Excel spreadsheet.
|Automobile||Blend X||Blend Y||Blend Z|
Based on the sample data we would like to determine whether the different blends of gasoline, produce significant differences in the average mpg. We would like to use the methods we have learnt so far in 361A to see if our result is statically significant. (Statistical significance refers to a result that is not likely to occur randomly but rather is likely to be attributable to a specific cause – in this case the different gasoline blends and different cars.)
Carry out the following tests and make preliminary findings:
Your report should have the following sections, arranged sequentially:
1. Introduction and problem background
2. Data description and the business questions to be answered
3. Initial data exploration – descriptive statistics/graphs
5. Interpretation of results, deficiencies in methods, final conclusions and recommendations for decision-making
this is what I have calculate from excel on question 1:
|Column1||Blend X||Blend Y||Blend Z|
Crescent Oil has developed three new blends of gasoline – Blend X, Blend Y and Blend...
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