Lecture 17
Hypothesis testing
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What is the central limit theorem?
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A large enough sample size (usually n > 30) always tends towards a Guassian distribution
The sample mean of a large enough sample size always tends towards a Gaussian distribution
The average of the results obtained from a large number of trials should be close to the expected value
None of the above
How do we interpret pvalues?
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the probability the null hypothesis is false
the probability the null hypothesis is true
the probability of observing a result as or more extreme given the null hypothesis is true
the probability of observing a result as or more extreme given the null hypothesis is false
What is a false positive?
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Rejecting the null hypothesis when the null hypothesis is true
A type II error
failing to reject the null hypothesis when the null hypothesis is false
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