assume that a random sample is used to esitmate a population proportion p. find the margin of error e that corresponds to the given statistics and confidence level
n=550 x=440 90% confidence
+23246 I believe that you also need to know the standard deviation of the population (at least the standard deviation of the sample) in order to do the calculation:
Formula: E = zα/2 · σ / √n
where: z represents the z-score when α = .90, σ represents the standard deviation, and n represents the number in the sample.
+23246 I believe that you also need to know the standard deviation of the population (at least the standard deviation of the sample) in order to do the calculation:
Formula: E = zα/2 · σ / √n
where: z represents the z-score when α = .90, σ represents the standard deviation, and n represents the number in the sample.
