QCE Together Year 12 Maths Methods: Approximate Confidence Interval

#### 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 Confidence Interval

In this post, we use the approximate confidence interval, as an interval estimate for p , where z is the appropriate quantile for the standard normal distribution. 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.

( \hat{p} - z \sqrt{ \frac{\hat{p}(1-\hat{p})}{n}}, \hat{p} + z \sqrt{ \frac{\hat{p}(1-\hat{p})}{n}})

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