Archive | Data Analysis

Non-Parametric Tests: Meaning and Types | Data Analysis | Statistics

Read this article to learn about:- 1. Meaning of Non-Parametric Tests 2. Important Types of Non-Parametric Tests 3. Non-Parametric Vs. Distribution-Free Tests. Meaning of Non-Parametric Tests: Statistical tests that do not require the estimate of population variance or mean and do not state hypotheses about parameters are considered non-parametric tests. Non-parametric tests are also referred to as distribution-free tests. These [...]

By |2018-08-01T07:43:10+00:00August 1, 2018|Data Analysis|Comments Off on Non-Parametric Tests: Meaning and Types | Data Analysis | Statistics
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Statistical Package for Social Science (SPSS) | Statistics

Read this article to learn about:- 1. SPSS (Statistical Package for Social Sciences) Introduction and Uses 2. Use of SPSS 3. Overview. SPSS (Statistical Package for Social Sciences) Introduction and Uses: SPSS is a software package used for conducting statistical analyses, manipulating data, and generating tables and graphs that summarize data. Statistical analyses range from descriptive statistics, such as averages [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Statistical Package for Social Science (SPSS) | Statistics
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Analysis of Variance (ANOVA) | Data Analysis | Statistics

ANOVA was developed by Prof. R.A. Fisher on Agriculturist who made an extensive use of this statistical technique in his agriculture experiment. In statistics the term ANOVA mean analysis of variance, which is one of the best advanced statistical technique in the field of professional business, physical sciences. Agriculture experiments and Economic theory. In the study of ANOVA our aim [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Analysis of Variance (ANOVA) | Data Analysis | Statistics
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Types of Graphs and Diagrams | Data Analysis | Statistics

Generally the following types of graphs are used in representing frequency distribution: 1. Histograms 2. Frequency Polygon 3. Frequency Curve 4. Cumulative Frequency Curve or Ogive 5. Bar Diagram 6. Area of Diagram 7. Circle or Pie Diagram 8. Prisms 9. Cartogram and Map Diagrams 10. Pictogram. Type # 1. Histrogram: In drawing the histrogram of a given grouped frequency [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Types of Graphs and Diagrams | Data Analysis | Statistics
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Applications of Chi-Square Test | Statistics

Read this article to learn about the applications of Chi-Square test in analyzing statistical data. Goodness of Fit: Habitat Use: If you are looking for habitat selection or avoidance in a species (e.g., black bear), you can use a goodness of fit test to see if the animals are using habitat in proportion to its availability. If you have collected [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Applications of Chi-Square Test | Statistics
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Multiplicative Law of Probability | Data Analysis | Statistics

Then if the two classifications are independent of each other, a cell probability will equal the product of its respective row and column probabilities in accordance with the multiplicative law of probability. Example of obtaining Column and Row Probabilities: For example, the probability that a particular defect will occur in shift 1 and is of type A is (p1) (pA). [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Multiplicative Law of Probability | Data Analysis | Statistics
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Contingency Tables and Tests for Independence of Factors | Statistics

Read this article to learn about the contingency tables and tests for independence of factors for data analysis. Survival: Is the probability of being male or female independent of being alive or dead? Let us use data on ruffed grouse. You collect mortality data from 100 birds you radio-collared and test the following hypothesis: Ho: The 2 sets of attributes [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Contingency Tables and Tests for Independence of Factors | Statistics
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Chi-Square Test (x2): Distribution and Properties | Statistics

The Chi-Square distribution is a mathematical distribution that is used directly or indirectly in many tests of significance. The most common use of the chi square distribution is to test differences between proportions. Although this test is by no means the only test based on the chi square distribution, it has come to be known as the chi square test. [...]

By |2018-08-01T07:43:09+00:00August 1, 2018|Data Analysis|Comments Off on Chi-Square Test (x2): Distribution and Properties | Statistics
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Measures of Central Tendency | Data Analysis | Statistics

Read this article to learn about:- 1. Meaning and Objectives of an Average 2. Types of Average 3. Which Average is best in the Measure of Central Tendency?  Meaning and Objectives of an Average: An average is a value which represents the entire data in a series by one figure. It has much significance because it represents the features of [...]

By |2018-08-01T07:43:08+00:00August 1, 2018|Data Analysis|Comments Off on Measures of Central Tendency | Data Analysis | Statistics
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