Statistics Population Sampling

Set of methods to obtain data and then organize, summarize, present, analyze, interpret and reach conclusions based on the data

• Statistics

• Inferential Statistics

• Descriptive Statistics

It is the complete set of all the elements that will be studied

• Inferential Data

• Population

• Sample

It is a subset of selected members

• Population

• Sample

• Qualitative Data

Population or Sample?

The final score of each golfer in a tournament

• population

• sample

Population or Sample?

The number of televisions in each US household

• population

• sample

Identify the population:

A survey of 500 adults in the U.S. found that 54% drink coffee daily.

• A. Collection of the 500 adults surveyed

• B. Collection of all adults in the U.S.

• C. 54%

• D. 500

Identify the sample:

A survey of 500 adults in the U.S. found that 54% drink coffee daily.

• A. Collection of the 500 adults surveyed

• B. Collection of all adults in the U.S.

• C. 54%

• D. 500

What is the study of the collection, organization, analysis, interpretation, and presentation of data.

It deals with the techniques used in generalizing from samples to populations, performing estimations and hypothesis tests determining relationships among variables, and making predictions

• Inferential Statistics

• Descriptive Statistics

• Qualitative Statistics

• Quantitative Statistics

What technique is also called Fishbowl Sampling or Lottery Draw?

• Simple Random Sampling

• Systematic Sampling

• Stratified Random Sampling

• Cluster Sampling