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grahamharrison68/conf2.py

Created March 28, 2021 07:47
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conf2.py
def normal_distribution_ci(confidence, x_bar, sigma, n):
z_score = stats.norm.interval(confidence)[1]
sigma_over_root_n = sigma / np.sqrt(n)
ci = [x_bar - z_score * sigma_over_root_n, x_bar + z_score * sigma_over_root_n]
return ci
def binomial_distribution_ci(confidence, p_hat, n):
z_score = stats.norm.interval(confidence)[1]
rhs = z_score * np.sqrt(p_hat*(1-p_hat))/n
ci = [p_hat - rhs, p_hat + rhs]
return ci
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