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Update check-power.qmd (format the numbered task list again)
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langejulian authored Sep 9, 2024
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Expand Up @@ -32,10 +32,10 @@ If we sample values from two normal distributions with different means (e.g. N(0
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**YOUR TURN:**
1. Use your simulation skills to work out the power through simulation. Write a function that does the following:
1. Use your simulation skills to work out the power through simulation. Write a function that does the following:

i. Draws `n` values from a random normal distribution with `mean1` and another `n` values from a normal distribution with `mean2`.
ii. Compares the means of these two samples with a *t*-test and extracts the *p*-value.
i) Draws `n` values from a random normal distribution with `mean1` and another `n` values from a normal distribution with `mean2`.
ii) Compares the means of these two samples with a *t*-test and extracts the *p*-value.

2. Replicate the function 1000 times using the parameters used in the power calculation above (that used the `power.t.test()` function).
3. Calculate the proportion of *p*-values that are smaller than 0.05.
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