Sample Testing When We Don’t Know The Population Standard Deviation Its all well and good sample testing when we know the population standard deviation. But what about if we don’t have the ability to get production data, or we just have a small sample size? How to conduct sample testing when we don’t know the […]
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In this blog post, we will continue our Hypothesis testing example and will be Calculating hypothesis test statistics. Lets actually work with some numbers! From our 3 previous blog posts: Creating a Hypothesis For Sample Testing Deciding the Correct Hypothesis Sample testing in China- hypothesis rules We have the following: Null hypothesis, H0= All bags
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A UK based company Sourcing from China Are you looking for a UK based company that sources products from China? Here at Mechsprout, we pride ourselves on being available for our clients in their time zone. We are here when you are here Because our offices are based in the UK, we have you covered
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Sample testing in China- Hypothesis Rules: In our previous blogs on sample testing, we discussed how we develop a hypothesis around a question and what the first 2 steps are in the process. You can find them here: Creating a Hypothesis For Sample Testing Deciding the Correct Hypothesis From the above, we developed the hypothesis:
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Deciding the correct Hypothesis: In our previous post, we talked a lot about crisps. Walkers crips in fact. I would not recommend eating crisps, far too much salt, carbs and fat. But on a hot day, sitting in a beer garden, alongside a canal, the sun radiating down, there is nothing better than eating a
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In our last post, we discussed the importance of the Z score, how it helps us when sample testing components. In this blog post, we discuss creating a hypothesis for sample testing. We should probably start at the beginning. What is a Hypothesis Test? A hypothesis is an idea or explanation that is proposed, the
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The Real Cost Of Shipping From China Shipping… what an absolute minefield. There are so many different TLA’s (that’s Three Letter Achronymys for the ironic out there). One of the hard parts of dealing with China is finding out the real cost of shipping from China. After all, we need to ensure you as a
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The Z Score And How We Can Use It In Acceptance Sampling In our last blog post, we talked about how Standard deviation can allow us to understand if data points are away from the mean and by how much. In this post, we are going to discuss how we can calculate the Z score
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We spoke in our past blog about what a sample is, and what are the best way of obtaining random sampling subgroups for testing. In this post, we will be discussing the importance of sample size. Sample Size We briefly said in our previous post that Bigger = Better and this is the case. A
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Quality control is the ability to capture issues before they leave the factory and end up in your customers hands. Sample testing is the best technique to indicate if a shipment/ batch is acceptable or not. But how to choose a sample for statistical analysis let’s discuss how to choose components and understand if we
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