FAQ: Hypothesis Testing - One Sample T-Test II


This community-built FAQ covers the “One Sample T-Test II” exercise from the lesson “Hypothesis Testing”.

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This exercise can be found in the following Codecademy content:

Data Science

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In this exercise, we expect the population mean to be 30 but the mean of our sample is 31. So wouldn’t our null hypothesis be “the sample represents a population of mean 31” Am I right? Then we go on and use test_1samp(distribution, 30) to find p value. I am confused. What are we checking for in this hypothesis test? Are we checking If the sample represents a population of mean 30? If so, if it is less than 0.05 then does it mean it represents a population of mean 30?