WEP 3

We followed the principles of a well designed experiment well. We used repetition when we did multiple trials to see the change in mass of the toilet paper. I learned that it is important to do multiple trials because you can have an outlier which will affect your data if it is not corrected with other trials. We used blocking when we looked at how ply count would affect absorbency. We used the controls effectively because we used the same brand of milk for all trials and left all conditions the same except for the ones we were trying to manipulate.

The most important thing that I learned through this was understanding that it takes a while to design a good experiment and you must consider many factors.

Winter Project 2

Results are shown below. We measure effectiveness by largest change in mass of the toilet paper by looking at change in mass. A higher change in mass indicates more absorbency. The results are listed below. We found that for all toilet paper, the one ply was less effective than the two ply. We also found that milk was harder to absorb than water. The most absorbant brand quilted northern because it had the greatest two ply change in mass for one tsp of water at 6 grams. Also, on average, it's one ply change in mass was greater than all other brands therefore it is the best one ply brand. For milk, Angel Soft was the most absorbent at 3 and 3.5grams change in mass

Northern Quilted Soft

	One Ply-0.5g	Two Ply-1.0g
1/2 tsp water average	2.67g	3g
trial one trial two trial three	3g 3g 2g	4g 2g 3g
tsp water average	4.67g	6g
trial one trial two trial three	4g 4g 5g	6g 7g 5g
1/2 tsp milk average	2g	2.67g
trial one trial two trial three	2g 2g 2g	3g 2g 2g
tsp milk average	3.67g	4.33g
trial one trial two trial three	3g 4g 3g	5g 3g 5g

Angel Soft

	One Ply-0.5g	Two Ply-1.0g
1/2 tsp water average	2g	2.5g
trial one trial two trial three	2g 2g 2g	4g 2g 3g
tsp water average	3g	4.5g
trial one trial two trial three	3g 4g 2g	6g 7g 5g
1/2 tsp milk average	3g	3g
trial one trial two trial three	3g 3g 3g	3g 2g 2g
tsp milk average	3.5g	3.5g
trial one trial two trial three	3.5g 3.5g 3.5g	5g 3g 5g

 Charmin Toilet Paper Brand

	One Ply-0.5g	Two Ply-1.0g
1/2 tsp water average	1.83g	4.03g
trial one trial two trial three	1.4g 2.1g 2.0g	4.1g 4.1g 3.9g
tsp water average	4.6g	5.33g
trial one trial two trial three	4.3g 4.4g 5.1g	4.7g 6.0g 5.3g
1/2 tsp milk average	2.87g	2.13g
trial one trial two trial three	3.1g 2.8g 2.7g	1.9g 2.3g 2.2g
tsp milk average	4.03g	3.83g
trial one trial two trial three	4.1g 3.9g 4.1g	3.9g 4.0g 3.6g

Winter Project

Toilet Paper Project


Which toilet paper brand is the most effective and how which ply count is the most effective. We will take the toilet paper brand A ply count X and put a liquid onto it and test how absorbent the toilet paper is. We will repeat this for another liquid and twice the original volume. This will be repeated for all other ply counts/ Brands. We will test absorbency by looking at how much of the liquid remains on the table after we pour it.

Randomization-We will randomly select which roll will be tested on. For example if we have to rolls of Brand A Ply count X we will assign each roll a number of 1 and 2 then randomly select which roll we will apply the first liquid to and which roll we will apply the second liquid to using a random number generator.
Blocking The ply count for each brand will be our blocking variable

Repetition- We will repeat the experiment a minimum of 2 to 3 times to ensure that the experiment is accurate
Control- Our controls are to use the same volumes for each brand that we test and to use the same liquid for each brand that we test.

Our factor is the type and amount of liquid

Our levels are the different types of liquids (liquid 1 and liquid 2) and the different volumes (volume 1 and volume 2)

Our treatments are liquid 1 volume 1, liquid 1 volume 2, liquid 2 volume 1, and liquid 2 volume 2. This will be applied to each roll

We will complete this experiment on a single day most likely the 8th of december