Data Set 11-5: $$\begin{array} { r r c } \text { Group A } & \text { Group B } & \text { Group C } \ \hline8 & 13 & 15 \ 10 & 15 & 17 \end{array}$$ -Suppose each of the scores in Data Set 11-5 was changed by adding 1 to it. SS_error will then be A) smaller B) larger C) the same size D) cannot be determined from the information given.

Question

Quizplus · Accepted Answer

Adding a constant to each score in a data set does not change the spread (standard deviation) of the data, as the distances between each data point remain the same.

Data Set 11-5 Group A Group B Group C 81315101517\begin{array} { r r c } \text { Group A } & \text { Group B } & \text { Group C } \\\hline8 & 13 & 15 \\10 & 15 & 17\end{array} Group A 810​ Group B 1315​ Group C 1517​​

Data Set 11-5 $\begin{array} { r r c } \text { Group A } & \text { Group B } & \text { Group C } \\\hline8 & 13 & 15 \\10 & 15 & 17\end{array}$