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? If you were to use Excel to assist in your solution to this problem, which test would you use?
A) ANOVA: Single Factor.
B) ANOVA: Two-Factor with Replication.
C) ANOVA: Two-Factor without Replication.
D) F-Test Two Sample for Variances.
E) t-Test: Paired Two Sample for Means.

Question

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?  If you were to use Excel to assist in your solution to this problem, which test would you use?
A) ANOVA: Single Factor. 
B) ANOVA: Two-Factor with Replication. 
C) ANOVA: Two-Factor without Replication. 
D) F-Test Two Sample for Variances. 
E) t-Test: Paired Two Sample for Means.

Quizplus · Accepted Answer

ANOVA: Single Factor is the appropriate test to determine if there is a significant difference in performance between the four grades of gas. This test compares the means of multiple groups to determine if there is a statistically significant difference between them.

Suppose That an Automobile Manufacturer Designed a Radically New Lightweight