This PowerPoint provides an overview and step-by-step method for calculating the Standard Error with 95% confidence limits using a set of sample data. The formula and notation used are in line with the AQA GCE Human Biology Students' Statistics Sheet (version 2.2). Spreadsheet now included providing the raw data.
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Really useful, thank you so much for sharing.
all your statistics ppts have been a great help thank you for sharing
as the standard deviation was a sample i believe slide 6 is correct n-1 if it was a population then it would be 30 please confirm if i am correct?
Once you have corrected the error on the PowerPoint (see below), this is an excellent resource and one that has saved me time with my prep. Thank you.
Agree with Ross. I will be amending this before using it. The accompanying spread sheet is correct!<br />
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