Looking back at my statistics 240 course, I realize that I remember a lot of key concepts but some of the details of calculation are a blur. For example, I know all of the basic measures including mean, median, mode. I recall that significance in a set of data is a way to determine if an effect was actually observed. Also, confidence intervals are essentially a measure of how confident you can be that the obtained result could be repeated. A confidence interval of .9 indicates 90% confidence and .99 indicates 99% confidence. If you have a very large sample and a high confidence interval then you can more readily rely on the validity of the results. In addition, a given sample size must have a minimum of thirty participants for its results to be considered significant (n=30). All of these concepts can be related to the normal distribution. When conducting an experiment, you want to prove that your hypothesis actually generated a result. By using statistical analysis, you can provide a numeric confirmation that a difference was observed between an original condition and the experimental condition. Since it has been awhile since I took the course, I’m not currently confident with all of the calculations pertaining to these concepts. Luckily, these are things that I could open up my old notebook and refresh myself on.
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Paragraphs
The sentence starting with "When conducting an experiment..." could be at the beginning of a new paragraph because it introduces a new topic and the previous sentence sums up very well the past information.
The only suggestion I can
The only suggestion I can make is in the second to last sentence, the word "since" is used twice and is too repetitive. My suggestion is just to rearrange the wording. Everything else looks great!