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Questions and Answers
Which type of graph shows the relationship of different parts to a whole over time?
Which type of graph is best for presenting the results of one or two data series?
Which element of a table efficiently exhibits the exact values and results with a large amount of data in a small amount of space?
Which element of a graph is a special chart that uses pie slices to show relative sizes of data?
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In a graph, what type of graph features values at different points in time and is best to have equal time intervals along the horizontal axis?
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In a graph, what type of graph shows the differences in individual values vertically and can be used to show the differences between values in different time periods or other data groupings?
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Which type of data attributes has a natural zero point, such as weight, height, and age?
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What type of statistical test requires a normal distribution and the level of measurements must be either interval or ratio?
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Which statistical tool is used to compare the means of two or more independent groups?
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What does the Chi-Square test of independence determine?
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Which statistical tool is used to predict the dependent variable given several independent variables?
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What type of data attributes are used for ranking purposes and are mostly used in Likert scaling?
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When is the Z-Test used?
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Which type of statistical test requires a normal distribution and the level of measurements must be either interval or ratio?
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What type of graph features values at different points in time and is best to have equal time intervals along the horizontal axis?
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Which type of data attributes are used for ranking purposes and are mostly used in Likert scaling?
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Which statistical tool is used to compare the means of two or more independent groups?
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Which type of graph shows the relationship of different parts to a whole over time?
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Which type of data attributes has a natural zero point, such as weight, height, and age?
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Which statistical test is used to compare two means when the sample has 30 or more elements?
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What type of test does not require the normal distribution of scores and can be utilized when the data are nominal or ordinal?
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Which statistical tool is used to compare the means of two or more independent groups?
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What is the index of relationship between two variables?
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What is the non-parametric version of the Pearson’s product-moment correlation that measures the strength and direction of association between two ranked variables?
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Which test is used to determine if two or more populations are homogenous?
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What statistical tool is used in predictions, where the dependent variable can be predicted given several independent variables?
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Which test is a test of difference between the observed and expected frequencies and has three functions including a Test of Goodness of Fit, Test of Homogeneity, and Test of Independence?
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What contains insights drawn from the findings of each problem which answer the questions presented at the beginning of the research paper?
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What is used when comparing the means of two correlated samples before and after treatment, and can be used for samples composed of less than 30 elements?
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Study Notes
Graph Types
- A pie chart displays the relationship of different parts to a whole over time using pie slices to indicate relative sizes.
- A line graph is ideal for showing values at different points in time, requiring equal intervals along the horizontal axis.
- A bar graph illustrates the differences in individual values vertically, useful for comparing values across different time periods or groups.
Data Attributes
- Continuous data is characterized by a natural zero point, common examples include weight, height, and age.
- Ordinal data is used for ranking, typically found in Likert scaling applications.
Statistical Tests
- Z-Test is applied when the sample size is 30 or more and requires a normal distribution with interval or ratio measurement levels.
- Chi-Square test of independence assesses the relationship between two categorical variables, determining if they are independent of each other.
- A non-parametric test, like Spearman's rank correlation, measures the strength and direction of association between ranked variables.
Statistical Tools
- ANOVA (Analysis of Variance) compares the means of three or more independent groups.
- Regression analysis is used to predict a dependent variable based on several independent variables.
- The Chi-Square test also functions to test for homogeneity across populations and includes tests for goodness of fit.
Research Insights
- The discussion section of a research paper contains insights and interpretations derived from findings, directly addressing the research questions posed earlier.
Additional Tests
- The paired sample t-test compares means from the same group before and after treatment and is suitable for small sample sizes, typically fewer than 30 elements.
- The Mann-Whitney U test does not require a normal distribution and can be applied to nominal or ordinal data.
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Description
Prepare for your 2nd quarter exam with this review of tables and graphs. Learn about presenting and analyzing data efficiently using tables and graphs to understand relationships, comparisons, and distributions.
