What is sequential testing and when should I use it?
Sequential testing is a statistical method that allows you to evaluate data as it is collected. You should use it when you want to make decisions quickly without waiting for all data to be collected.
Can you give me an example of when sequential testing would be beneficial?
Sure! If you're running a clinical trial and want to determine the effectiveness of a new drug, sequential testing allows you to analyze results at various stages and potentially stop the trial early if the drug is clearly effective or ineffective.
Are there any drawbacks to using sequential testing?
Yes, one drawback is that it can lead to increased chances of Type I errors, meaning you might incorrectly reject the null hypothesis. It's important to adjust your significance levels accordingly.
How do I decide the sample size for sequential testing?
Determining sample size in sequential testing involves considering the expected effect size, the desired power of the test, and the significance level. You may also want to use simulations to better understand the required sample size.
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