Can you conclude that the mean gas mileage for cars using conventional motor oils is less than the mean for synthetic motor oil? Use the 0.02 level of significance. Use P method. List all steps. Interpret results.

Can you conclude that the mean gas mileage for cars using conventional motor oils is less than the mean for synthetic motor oil? Use the 0.02 level of significance. Use P method. List all steps. Interpret results.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 3BGP

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Question

An automobile manufacturer wishes to test the claim that synthetic motor oil can improve gas mileage (in mpg). The table below shows the gas mileages, in mpg, of six cars that used synthetic motor oil. The table also shows the gas mileages in mpg of six cars that were using conventional motor oil (the controls).

synthetic	26	27	27	25	28	29
control	26	25	24	25	27	25

Can you conclude that the mean gas mileage for cars using conventional motor oils is less than the mean for synthetic motor oil? Use the 0.02 level of significance. Use P method. List all steps. Interpret results.

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