Question

In: Statistics and Probability

Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were...

Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive 1 and nine cars were tested with additive 2. The following data show the miles per gallon obtained with the two additives.

Additive 1 Additive 2
18.3 18.7
19.4 18.8
20.1 21.3
15.7 20.0
18.2 23.1
18.6 18.7
17.5 19.8
20.7
19.2

Find the value of the test statistic and p-value.

please do step by step? I saw there was a similar problem but table 8 in Appendix B Tables isn't there so I wasn't able to finish the answer.

Solutions

Expert Solution

Let denote the average gasoline mileage for cars with additive 1 and additive 2 respectively.

Conclusion in probelm context :

There is significant effect on gasoline mileage.


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