1.1 - Sampling Methods (Solutions)

1.1 - Sampling Methods (Solutions) - 1.1 Sampling Methods...

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1.1 – Sampling Methods 1 Section 1.1 Sampling Methods STATISTICS The science of collecting, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions
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1.1 – Sampling Methods 2 TYPE OF STATISTICS DESCRIPTIVE INFERENTIAL Methods of organizing, summarizing, and presenting data in an informative way. Methods are used to estimate the characteristics of a POPULATION based on a SAMPLE. These methods include confidence intervals, hypothesis testing, regression analysis and chi- square analysis. These calculations include frequency distributions, mean, median, mode, skewness, range and standard deviation. GETTING DATA PRIMARY DATA SECONDARY DATA Data that you collect yourself Data previously collected by someone else ADVANTAGE: ADVANTAGE: You can collect exactly the data you need DISADVANTAGE: Collecting data can be costly or difficult Usually cheaper and less time consuming to obtain DISADVANTAGE: Quality of the original collection method These are only a select few examples. There are many more advantages and disadvantages to each method.
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1.1 – Sampling Methods
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This note was uploaded on 10/04/2011 for the course MATH 1045 taught by Professor John during the Fall '10 term at Fanshawe.

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1.1 - Sampling Methods (Solutions) - 1.1 Sampling Methods...

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