A group of students wanted to determine whether or not compost is beneficial in plant growth.
The students used the dahlia flower to study the effect of composting. They planted eight dahlias
in a bed with no compost and another eight plants in a bed with compost. They measured the
height of each plant over a 9-week period. They found the median growth height for each group
of eight plants. The table below shows the results of the experiment for the dahlias grown in non-
compost beds.
Part 1:
Week
1
2
3
4
S
6
7
8
9
Median Height in
Non-Compost Bed (inches)
9.00
12.75
16.25
19.50
23.00
26.75
30.00
33.75
37.25
a. Based on the table, do you think the data follow a linear pattern? Explain your answer.