Ziplock Zoomer!

The second investigation is to examine the relationship between mass (m) and force (f). Theoretically, there is a directly proportional relationship between mass and force. 

My peers and I have attached a paperclip to a Ziploc to use as a hook that can be attached to the iOlab brick. The agreed-upon unit of mass is US-made quarters. We started the experiment by measuring the force using zero quarters, then used one to five quarters. The force, in newtons (N), was recorded for each attempt. 
It was helpful to collect the data simultaneously with the rest of the team to reduce the number of human errors. A mistake, on my part, was adjusted during the experiment. I mistakenly started collecting data at m=1 instead of m=0. A team member pointed out the mistake, and I adjusted accordingly. 
If we were to make a prediction based on eight units of mass, the outcome can look like the following:

m(quarters)     Force (N)     (Experimental value)
0                        0.29                     Yes
1                        0.35                     Yes
2                        0.39                     Yes
3                        0.45                     Yes
4                        0.5                       Yes
5                        0.55                     Yes

Data from 1-5 is based on the experiment. The average Δf= 0.50
We may predict the following values of force for m=6,7,8

m(quarters)     Force (N)     (Experimental value)
6                        1.05                     No
7                        1.56                     No
8                        2.06                     No