QCE Together Year 12 Maths Methods: Approximate Confidence Interval

Maths Methods

Back to other subjects

Approximate Confidence Interval

In this post, we use the approximate confidence interval, as an interval estimate for [katex] p [/katex], where [katex] z [/katex] 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.

[katex] ( \hat{p} – z \sqrt{ \frac{\hat{p}(1-\hat{p})}{n}}, \hat{p} + z \sqrt{ \frac{\hat{p}(1-\hat{p})}{n}}) [/katex]

 

Confidence intervals for sample proportions

Calculating the confidence interval

45,861 students have a head start...

Get exclusive QCE content & advice from our team of experts delivered weekly to your inbox!

Here’s how we help...

Holistic K-12 Tutoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Comprehensive Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

AOS asset - Rocket

Study, Uni, Career Mentoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Senior School Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

45,861 students have a head start...

Get exclusive study content & advice from our team of experts delivered weekly to your inbox!

AOS Website Asset 2

Looking for Academic Support?

Discover how we can help you!

AOS Website Asset 1