In the formula used to calculate the minimum sample size needed to achieve a given margin of error, n = (z / margin of error)^2 * p̂ * (1 - p̂), what value should we use for p̂ if no value is provided by the problem?




© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.