An electronics company wants to compare the quality of their cell phones to the cell phones from three competitors. They sample 10 phones from each company and count the number of defects for each phone. Using Excel, what test is used to compare the average number of defects?
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

Quizplus · Accepted Answer

ANOVA: Single Factor is used to compare the average number of defects between more than two independent groups. In this case, the electronics company is comparing their cell phones to three competitors, so ANOVA: Single Factor is the most appropriate test.

An Electronics Company Wants to Compare the Quality of Their