Consider the following table Following is the graphic repres

Consider the following table.

Following is the graphic representation of the table above, using six side-by-side dotplots. The mean commute time for each city has been visually estimated and located with an X.

(a) Does it appear that the city has an effect on the average amount of time spent by workers who commute to work during the 8:00 AM rush hour? Explain.

No. Not all of the means are the same value?

No. The means are basically the same value?

Yes. The means are basically the same value?

Yes. Not all of the means are the same value?

Solution

As you can see, the X marks are quite close to each other.

Thus, the averages of each city are close to each other, and the difference seems not to be significant.

Thus, the answer is OPTION B: NO. THE MEANS ARE BASICALLY THE SAME VALUE. [ANSWER]