Suppose That an Automobile Manufacturer Designed a Radically New Lightweight

question 101

Multiple Choice

Suppose that an automobile manufacturer designed a radically new lightweight engine and wants
To recommend the grade of gasoline to use. The four grades are: below regular, regular, premium,
And super premium. The test car made three trial runs on the test track using each of the four
Grades. Is there a difference in the performance between the four grades of gas?
Using the printout given by Excel, what to you conclude?

• A) Since the calculated F-value is smaller than the F-critical value, there is a difference in the performance of these four grades of gas.
• B) Since the calculated F-value is smaller than the F-critical value, there is no significant difference in the performance of these four grades of gas.
• C) Since the calculated F-value is larger than the F-critical value, there is no significant difference in the performance in the four grades of gas.
• D) There is no significant difference in the performance of these four grades of gas as indicated by the calculated F-value being smaller than the F-critical value, and the P-value