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Tag: Hypothesis Testing

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4 posts with this tag

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Analysing reddit data - part 4: data analysis

This week ends a 4-part series on extracting and analysing JSON-encoded data from reddit, using the subreddit /r/relationships as an example. In the first two entries I set up the environment and collected the data. Last week, I finished by cleaning …

Posted on December 9, 2015 • 9 minutes read Read on
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Interpreting linear regression coefficients

Coming from a psychology background, I have a soft spot for multiple linear regression. This method is a workhorse in statistics and machine learning, being flexible, powerful and easily interpretable. An issue that people new to multiple regression …

Posted on October 28, 2015 • 8 minutes read Read on
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Two-group hypothesis testing: permutation tests

In the last blog post I described how you could test whether the difference between two groups was statistically significant using an independent-samples t-test. (I will rely heavily on that blog post in this one, so I encourage you to at least skim …

Posted on October 7, 2015 • 6 minutes read Read on
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Two-group hypothesis testing: independent samples t-tests

In some of my previous posts, I asked you to imagine that we work for a retail website that sells children's toys. In the past, they've asked us to estimate the mean number of page views per day (see here and here for my posts discussing this …

Posted on September 30, 2015 • 9 minutes read Read on
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