a normal population has a mean 100 and variance 25. how large must the sample size be if we want the standard error of the sample average to be at most 1.5
Added by Johnny K.
Step 1
Step 1: Calculate the standard error using the formula SE = σ / √n, where SE is the standard error, σ is the standard deviation (which is √25 = 5 in this case), and n is the sample size. Show more…
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