QCE Together Year 12 Maths Methods: Approximate Margin of Error

#### Maths Methods

• The Logarithmic Function 2
• Further Differentiation and Applications 2
• Integrals
• Further Differentiation and Applications 3
• Trigonometric Functions 2
• Discrete Random Variables 2
• Continuous Random Variables and the Normal Distribution
• Interval Estimates for Proportions
• Back to other subjects
Back to other subjects

# Approximate Margin of Error

In this post, we define the approximate margin of error E = z \sqrt{ \frac{\hat{p} (1-\hat{p} )}{n} } and understand the trade-off between the margin of error and level of confidence. This syllabus dot point is a part of the QCE Maths Methods course under the topic Interval Estimates for Proportions and the Normal Distribution and sub-part Confidence Intervals for Proportions, specifically approximate margin of error.

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