Question

Using the dotplot and the difference in mean distances

Answer 1

Notice that the variation of the mean by observing the dot plot alone shows that there is a slight difference in the means but not one that is significant. Therefore, the correct answer is D.

What is the definition of Mean Difference?

Mean difference is a statistical term that is used to measure the definite difference between the mean value of distribution among two sets of data.

In this case, the two sets of data are data from the new balls and the data from the old ball.

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