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The help desk is keeping track of the number of minutes the average caller spends on hold.

\begin{tabular}{|c|c|}
\hline
\multicolumn{2}{|c|}{ Average Time on Hold with Help Desk } \\
\hline
Week & \begin{tabular}{c}
Average Time on Hold \\
(Minutes)
\end{tabular} \\
\hline
1 & 7 \\
\hline
2 & 5 \\
\hline
3 & 3 \\
\hline
4 & 2 \\
\hline
5 & 3 \\
\hline
6 & 5 \\
\hline
\end{tabular}

According to the table, during which interval did the average time spent on hold increase?

A. Week 1 to Week 3
B. Week 1 to Week 4
C. Week 4 to Week 6
D. Week 3 to Week 5



Answer :

GinnyAnswer
Let's examine the changes in the average time spent on hold for the specified intervals:

1. Interval from Week 1 to Week 4:
- Average time on hold in Week 4: 2 minutes.
- Average time on hold in Week 1: 7 minutes.
- Change in time: [tex]\(2 - 7 = -5\)[/tex] minutes.
- Result: The time decreased, so there is no increase in this interval.

2. Interval from Week 3 to Week 4:
- Average time on hold in Week 4: 2 minutes.
- Average time on hold in Week 3: 3 minutes.
- Change in time: [tex]\(2 - 3 = -1\)[/tex] minutes.
- Result: The time decreased, so there is no increase in this interval.

3. Interval from Week 4 to Week 6:
- Average time on hold in Week 6: 5 minutes.
- Average time on hold in Week 4: 2 minutes.
- Change in time: [tex]\(5 - 2 = 3\)[/tex] minutes.
- Result: The time increased, so there is an increase in this interval.

4. Interval from Week 5 to Week 6:
- Average time on hold in Week 6: 5 minutes.
- Average time on hold in Week 5: 3 minutes.
- Change in time: [tex]\(5 - 3 = 2\)[/tex] minutes.
- Result: The time increased, so there is an increase in this interval.

Given these calculations, the intervals where the average time spent on hold increased are:

- From Week 4 to Week 6
- From Week 5 to Week 6

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