Sampling in Statistical Inference

Population ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sample ,[object Object],[object Object],[object Object],[object Object],[object Object]

Population Sample Sample Statistics Population Parameters Inference Samples are drawn to infer something about population

Reasons to Sample ,[object Object],[object Object],[object Object],[object Object],[object Object]

Probability Vs Non Probability Sampling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Probability Vs Non Probability Sampling ,[object Object],[object Object],[object Object],[object Object],[object Object]

Types of Variables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sampling Error ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sampling Distributions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sampling Distribution of Means ,[object Object],[object Object],[object Object],[object Object],[object Object]

Distribution of the Population

Sampling distribution of means n = 2

= µ = 0.6 3 3,3 9 2 Mean of SD 2.5 3,2 8 2 3,1 7 2.5 2,3 6 2 2,2 5 1.5 2,1 4 2 1,3 3 1.5 1,2 2 1 1,1 1 Sample Mean Sample Sample #

[object Object],[object Object],0.6 < 0.8 = µ <

[object Object],[object Object]

Central Limit Theorem …… ,[object Object],[object Object],[object Object],[object Object]

Central Limit Theorem …… ,[object Object],[object Object],[object Object]

Implications of CLT ,[object Object]

Implications of CLT Cont ,[object Object],[object Object],[object Object],[object Object],=

[object Object],[object Object],[object Object],[object Object]

What can go wrong ,[object Object],[object Object],[object Object],[object Object],[object Object]

How to do it rightly ,[object Object],[object Object],[object Object],[object Object],[object Object]

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