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Statistical Figures

Statistical figures are frequently used in statistics to present data in an illustrative format, which clearly communicates the results in an interpretable manner, in which patterns can be emphasized. Often, figures can focus on particular aspects of a data set which are important, but hard to notice when only analyzing the raw data in basic numerical form. Therefore, understanding how to construct different graphical figures is imperative to being successful in expressing statistical data effectively.

There is a multitude of different statistical figures which are taught in statistics because depending on the nature of the data or hypothesis being tested, different figures are more appropriate than others. Figures range from being fairly basic such as bar charts and scatter plots, to more complex such as box plots and pareto charts, which require several calculations to be computed so that the graph can be completed. Other graphics, such as histograms or control charts, are most often used in particular cases. A histogram is utilized to represent a frequency distribution and control charts are commonly utilized when graphing manufacturing processes.

Furthermore, when presenting statistical data and results to the general public, for example in a journal publication, the use of statistical graphics is particularly powerful. It is more likely that statistical figures will be able to get the take home message across, in comparison to the original raw data tables. The application of statistical figures extends well beyond the classroom and evidently, is integral to communication in the discipline of statistics.

Categories within Statistical Figures

Bar Chart

Postings: 3

A bar chart is a statistical diagram which compares the numerical values for different categories through the use of either horizontal or vertical bars.

Pie Chart

Postings: 14

A pie chart is used to display categorical data as the area of divided sectors in a circular figure, representing each category as a proportion of the whole.

Pareto Chart

Postings: 11

A pareto chart is a special type of bar graph, which incorporates the use of a line graph to represent the cumulative total of all the units being measured.

Box Plot

Postings: 28

A box plot provides an illustrative representation of the differences between groups by graphing the numerical data for each group using quartiles.

Control Chart

Postings: 68

A control chart is used to measure the statistical control associated with manufacturing processes and thus, plots the lower and upper control limits to measure deviations from the controlled state.

Histogram

Postings: 68

A histogram is used in statistics to represent visually a frequency distribution for different category boundaries, through the construction and juxtaposition of rectangular bars.

Q-Q Plot

Postings: 0

A quantile-quantile plot is used when considering populations with a common distribution and is used to analyze two probability distributions against each other.

Scatter Plot

Postings: 42

A scatter plot is utilized to depict the relationship between two variables and can analyze whether a cause-and-effect relationship exists.

Stemplot

Postings: 28

A stemplot also referred to as a stem-and-leaf display, functions to provide in graphical form the shape and spread associated with a set of quantitative data.

Business Statistics of Age and Health Correlations

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Ratio rate and analyzing difference between probability

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Control Charts

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Making an XBar Control Chart with Excel

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Three methods of statistical inference

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Control Charts: Plotting and Calculating

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Estimating the Cost of Optical Sensors Based on the Resolution of the Sensor

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Stats and Financial Analysis

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Wilcoxon Signed-Rank Test

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The solutions gives detailed discussion on some measurements of descriptive statistics. The topic includes DR, FFQ, quantiles and concordance. The conecpts, graphs and tables are put together for better understanding.

Problem 2.28 is what needs solved. 2.27 is provided for reference because the problem refers to it. Nutrition The food-frequency questionnaire (FFQ) is an instrument often used in dietary epidemiology to assess consumption of specific foods. A person is asked to write down the number of servings per day typically eaten

R- and x-Bar Charts

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Non-conformities

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Christian Pie Chart

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Statistical Quality Control: Colonel Electric

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Statistical Interference Problem

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Statistics Question: Lead Time for a Sample of Internet Orders

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Analyzing Data

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Construct a pie chart for the data set in the given table.

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A local children's boutique specializes in formal wear for young girls

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Children's Boutique Control Chart

A local children's boutique specializes in formal wear for young girls. It has recently hired a new seamstress. To assure the dresses have standard sizes, twenty samples of each 12 dresses that were labeled 3T were sampled. The average length from shoulder to hemline measured 21 inches with a range of 0.5 inches. A sample has ju

Statistical Process Control Assignment

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What is the sample size?

Below are the X-bar and R values for five samples. If the lower control limit for the X-bar chart is 8.34, what is the sample size? See attachment for values.

X-bar and R chart

Please read the following situation and provide a solution. Please post the solution in a Microsoft Word format. A Starbucks manager decides to study waiting times of customers for service at the lunch time rush hour 1100-1200. He observes three customers to measure the time the customer enters the line to the time he or s