The Excel/Mega-Stat output given above summarizes the results of a one-way analysis of variance in an attempt to compare the performance characteristics of four brands of vacuum cleaners.The response variable is the amount of time it takes to clean a specific size room with a specific amount of dirt. At a significance level of .05,we would:
A)Not be able to reject the null hypothesis of equal population means.
B)Reject the null hypothesis of equal population means.
C)Reject or fail to reject depending on the value of the t statistic.
D)Not be able to decide whether or not to reject the null hypothesis due to insufficient information.

Question

The Excel/Mega-Stat output given above summarizes the results of a one-way analysis of variance in an attempt to compare the performance characteristics of four brands of vacuum cleaners.The response variable is the amount of time it takes to clean a specific size room with a specific amount of dirt. At a significance level of .05,we would:
A)Not be able to reject the null hypothesis of equal population means. 
B)Reject the null hypothesis of equal population means. 
C)Reject or fail to reject depending on the value of the t statistic. 
D)Not be able to decide whether or not to reject the null hypothesis due to insufficient information.

Quizplus · Accepted Answer

Since the p-value is less than 0.05, we reject the null hypothesis of equal population means in favor of the alternative hypothesis that at least one brand performs significantly differently from the others.

The Excel/Mega-Stat Output Given Above Summarizes the Results of a One-Way