CP5070-2022-2B01-Group3-JiHinn

Welcome back everybody to my final blog! For this blog I will be documenting my group's semester long journey in creating a chemical product. My group consists of Brice, Devin, Yuhan and myself! Our group will be creating a door handle steriliser. 1)  Our team's Chemical Device             Chemical Device: Door handle steriliser Project Background:  Door handles are a significant culprit in the spreading of viruses and bacteria. This is because everyone must touch them to open the door, and they rarely get cleaned since they do not look dirty to the naked eye. Also, most door handles are made of stainless steel, which is a perfect material for bacteria to cultivate on. Some examples of viruses that can spread are the coronavirus (COVID-19), norovirus, hand foot and mouth disease, and influenza.           To emphasise, ever since COVID-19 started, the need for sterilisation tools/equipment/media to minimise its spread has increased. One of the commonly touched areas that requir

Welcome back everybody! In this blog I will be talking about hypothesis testing and sharing everything that I have learned.  HYPOTHESIS TESTING The first thing we should know about is what exactly is hypothesis testing. While it may seem quite obvious from the name itself, it is actually much deeper than what I thought it would be. Hypothesis testing allows for statistical hypothesis to be proven or rejected through formal procedures. Statistical hypothesis: an assumption about a population that may or may not be correct. Hypothesis testing can be used to answer questions such as: Is the new material as strong as the old one? Is the performance of our product enhanced after undergoing the revamp? Is the spare part performing as well as the original part? In my case I will be conducting an experiment to undergo hypothesis testing for the effects of various factors on a catapult. Frequent readers of my blog will recognise that this is actually the same experiment as my practical for Desi