Topic: The time it takes to remove nail polish with Acetone based remover.

Research Question: How much time does it take for an Acetone based nail polish remover to remove one and two coats of nail polish, respectively?
The two variables are: The amount of nail polish removed (x: the explanatory variable) and the time taken to remove one and two coats of nail polish (y: the response variable)
Process:
-Measure specific amounts of polish remover and write them down for consistent reproduction.
-Select a specific brand and color of polish with which to try the experiment (As all of them are a little different in composition, I will try to be as consistent as possible).
-Paint a certain number of coats of polish on which to do the experiment, always using the same number.
-Make certain that the amount of time between each coat is consistent, as this will affect the time it takes to remove the polish.
-Always use the same medium on which to apply the polish remover. Different things (i.e. cotton balls versus toilet paper or paper towels) react differently to the remover and the polish and will not a produce a mutual result.

Trial #
Time to remove 1 coat (seconds)
Time to remove 2 coats
1
10.5
31.8
2
10.1
16.6
3
13.7
24.4
4
13.8
23.7
5
8.9
19.9
6
7.8
16.2
7
8.3
23.7
8
7.2
16.8
9
8.4
24.7
10
11.1
27.5
11
8.3
24.9
12
10.4
20.1
13
9.7
23.8
14
10.7
14.4
15
8.1
20.3
16
11.2
26.6
17
10.6
18.2
18
9.7
25.2
19
8.9
18.7
20
8.4
29.1
21
11.1
25.6
22
10.3
28.8
23
9.2
18.3
24
7.7
11.8
25
12.1
28.7
26
11.4
19.9
27
8.6
23.4
28
8.8
20.9
29
9.1
17.9
30
11.3
17.3
Mean of data set 1: 9.8467 Mean of data set 2: 21.9733

The correlation coefficient for my two data sets is: 0.3168

The coefficient of determination (R2) is: 0.1004

The Least Square Regression line (y = ax+b) is: y=0.9272x + 12.8432



Summary of Results

The results of my finding from this experiment show that it takes more time to remove 2 coats of nail polish than 1. As the compared mean of my 2 data sets


shows, the difference is more than twice the time between 1 coat of polish and 2. In order to achieve as balanced results as possible, I used the same medium to apply

to polish remover as well as the same medium to apply each sample of nail polish coats. The data, as evident from the least square regression line, there is no linear

relationship between the amount of polish and the time it takes to remove it. As I stated in my original proposal, I used one brand and color of nail polish, and to keep

timing consistent, I painted each sample in order and then removed the samples in the same order, giving the samples as equal as possible a time to dry.

Because this was a small-scale experiment, some of the factors were difficult to accurately measure. There are a few confounding variables that had to be

contended with. For one thing, the amount of nail polish in each sample as well as the amount of remover used each time was somewhat estimated. In addition, the

amount of dry time was not completely consistent because I did not have any way of creating and then removing samples simultaneously.