Here is the rubric for the Biostatistics Unit project:





Here are the powerpoints we saw in class:












Standard deviation may sound complicated but once you know the steps involved you can calculate it easily. It will take you some time to get the hang of it but a little practice will help you get there.


BELOW ARE SOME ADDITIONAL RESOURCES THAT YOU MAY USE TO HELP YOU UNDERSTAND THE TOPIC.











And from Mr. Lau´s class in Oklahoma:
Here is a very useful video that will take you through the calculation of the standard deviation of your data sets. Not only will it help to put things into perspective but it will also allow you to recognise the symbols used in this calculation.



The relevance of the t-test is explained below:














REMEMBER THAT
If you are working out the t value on your own it must be compared to the appropriate critical value (for t) for the relevant degrees of freedom. If your calculated t value is higher than the critical value then there IS a significant difference between your samples.


Below you will find the link to a site where you can practice the use of the standard deviation function of your calculator (check the answers to ensure you are getting the right answers!)
Mean and Standard deviation problem set