Point Estimation

Description

A-Levels Further Mathematics Flowchart on Point Estimation, created by Alex Burden on 02/04/2017.
Alex Burden
Flowchart by Alex Burden, updated more than 1 year ago
Alex Burden
Created by Alex Burden about 7 years ago
14
0

Resource summary

Flowchart nodes

  • Point Estimation
  • Estimatior - any statistic to estimate a characteristic of a population
  • Unbiased estimator is denoted by: E(T)=α
  • The most efficient and best estimator for α, is the estimator that:is unbiasedhas the smallest variance
  • Most Efficient of Population Mean
  • Unbiased Estimator:
  • Most Efficient of Population Variance
  • Best unbiased estimator of population variance: σ̂^2S^2 = variance of the sample
  • Can also be noted as
  • Best Unbiased Estimator of a Probability/Proportion
  • X~Bin(n,α)unbiased estimator:          Estimated Standard Error:                           p̂=Ps where Ps = sample proportion
  • Distribution of the Sample Proportion
  • For both np>5 and nq>5 a continuity correction needs to be used.If n>30, by C.L.T. :-                      Continuity correction for                  is:             if using equation above
Show full summary Hide full summary

Similar

All AS Maths Equations/Calculations and Questions
natashaaaa
Fractions and percentages
Bob Read
GCSE Maths Symbols, Equations & Formulae
Andrea Leyden
FREQUENCY TABLES: MODE, MEDIAN AND MEAN
Elliot O'Leary
HISTOGRAMS
Elliot O'Leary
CUMULATIVE FREQUENCY DIAGRAMS
Elliot O'Leary
GCSE Maths: Understanding Pythagoras' Theorem
Micheal Heffernan
Using GoConqr to study Maths
Sarah Egan
New GCSE Maths
Sarah Egan
Maths GCSE - What to revise!
livvy_hurrell
GCSE Maths Symbols, Equations & Formulae
livvy_hurrell