Instruction 14-2
The following table contains the number of complaints received in a department store for the first six months of last year.
$$\begin{array} { c c }
\text { Month } & \text { Complaints } \
\text { January } & 36 \
\text { February } & 45 \
\text { March } & 81 \
\text { April } & 50 \
\text { May } & 108 \
\text { June } & 144
\end{array}$$
-Referring to Instruction 14-2,if a three-term moving average is used to smooth this series,how many values would it have?
A) Five
B) Three
C) Two
D) Four

Question

Instruction 14-2
The following table contains the number of complaints received in a department store for the first six months of last year.
 $$\begin{array} { c c } 
\text { Month } & \text { Complaints } \
\text { January } & 36 \
\text { February } & 45 \
\text { March } & 81 \
\text { April } & 50 \
\text { May } & 108 \
\text { June } & 144
\end{array}$$
-Referring to Instruction 14-2,if a three-term moving average is used to smooth this series,how many values would it have?
A) Five
B) Three
C) Two
D) Four

Quizplus · Accepted Answer

A three-term moving average for a series of six values will result in four smoothed values because the first average is calculated starting with the first value and includes the next two (covering the first three months), and then the process moves one month forward at a time until the last three months are averaged, leaving the first and last positions in the series without a moving average value.

Instruction 14-2 the Following Table Contains the Number of Complaints

Instruction 14-2
the Following Table Contains the Number of Complaints