September 2017
Beginner to intermediate
412 pages
8h 55m
English
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Hypothesis testing
Suppose a pharmaceutical company claims that their allergy medicine is 90% effective in relieving allergies for a 12-hour period. To test that claim, an independent laboratory conducts an experiment with 200 subjects. Of them, only 160 report that the medicine was, as claimed, effective against allergies for 12 hours. The laboratory must determine whether that data is sufficient to reject the company's claim.
To set up the analysis, we first identify the population, the random sample, the relevant random variable, its distribution, and the hypothesis to be tested. In this case, the population could be all potential consumers of the medicine, the random sample is the set of n = 200 subjects reporting their results, and the random ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.