AnjaDe Posted May 13, 2016 Report Share Posted May 13, 2016 I suppose some teachers aren't as familiar with data processing and analysis and most students need some help. That is why I am offering my help, even though, of course, I don't know everything (especially physics data processing, I have Bio and Chem) so others who are savvy with this, please join! If you guys have questions about processing your results in Excel or LoggerPro, I will be happy to offer my help and I think this post can also be a place where those who struggle can ask and those who know can help. My IA was post praised for the "professional" way I analysed my data in Chemistry and Biology. I included st dev, x and y error bars on graphs, used the right kind of charts for my data (using connected dots when it's against time, bar graphs if I have groups of data etc), statistical tests (t test, f test), absolute error and uncertainty. Even paying attention to significant figures and showing examples and steps to all of my calculations, even the simplest ones. Please do not hesitate and I also have another program for processing data, so if something doesn't work in the other two, I might give it a go in this one and send you the screenshot with results and an explanation of the method, so you will have an understanding of what has been done... Link to post Share on other sites More sharing options...
Emi Posted July 13, 2016 Report Share Posted July 13, 2016 Hi AnjaDe! I have a problem with calculating uncertainty. My experiment was to measure the rate of reaction of catalase (% change in O2 against time) and I am struggling to find the uncertainty in time. I've used a Vernier Oxygen Sensor and a Lab Quest, however, I'm not sure how to find the time uncertainty, and I just know that I have to find out the time uncertainty of the device. I've looked up the user manual for the O2 sensor, and found that the Response Time is 90% of final reading in ~12 seconds. Do I find the uncertainty from this value? Do you know a way to do this or how to find it? Thank you so much in advance! Link to post Share on other sites More sharing options...
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