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In the formula for the confidence interval, why do we add and subtract z * s_p-hat from p-hat? Because z * s_p-hat represents the margin
In the formula for the confidence interval, why do we add and subtract z * s_p-hat from p-hat? Because z * s_p-hat represents the margin of error. Because z * s_p-hat represents the degree of confidence. Because p-hat represents the degree of confidence. Because p-hat represents the margin of error
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
5th Edition
471862517, 978-0471862512
