Table 1 shows an age frequency distribution with five categories of age ranges defined. The number of people used in sociological research studies routinely reaches in the hundreds for just this reason. Fortunately, the field of mathematics offers us numerous statistical tools that can aid us in this task.

Two common ways to express the mean and variability are shown below: On the other hand, descriptive statistics is used mainly to give a description of the behavior of the sample data.

Univariate Analysis Univariate analysis involves the examination across cases of one variable at a time. Even within the same party, voters can be divided over a candidate, with some giving credence to one piece of information about the candidate and others valuing another piece.

Aquatic science fall final review essay flowery language for essays on leadership compare and contrast essay two memorable teachers? The Standard Deviation is a more accurate and detailed estimate of dispersion because an outlier can greatly exaggerate the range as was true in this example where the single outlier value of 36 stands apart from the rest of the values.

However, it would be difficult to display these results by graphing all 1, points. With descriptive statistics you are simply describing what is or what the data shows.

Another instance is determining the how a student performs in school. Summarizing Statistical Test Outcomes in Figures If the results shown in a figure have been tested with an inferential test, it is appropriate to summarize the outcome of the test in the graph so that your reader can quickly grasp the significance of the findings.

For two groups, the larger mean may have asterisks centered over the error bar to indicate the relative level of the p-value.

When the confidence interval for the difference between two means does not span 0, then the findings will always be statistically significant.

For this reason, some researchers advocate the use of confidence intervals. The Median is the score found at the exact middle of the set of values. It is a truism that people can look at the same situation and honestly disagree.

For instance, a typical way to describe the distribution of college students is by year in college, listing the number or percent of students at each of the four years. To determine the mode, you might again order the scores as shown above, and then count each one.

Each descriptive statistic reduces lots of data into a simpler summary. Descriptive statistics are used to summarize and display data through various types of charts and graphs, such as histograms and pie charts. Measures of Central Tendency Although graphing the data using this or other graphing techniques is helpful for better understanding the shape of the underlying distribution, other statistical tools, like measures of central tendency and measures of variability, can be used to understand the data even more thoroughly.

Some users of statistics feel comfortable applying statistics for interval scales to these data if items are summed to produce a total score e.Descriptive Statistics paper RES/ July 24, Descriptive Statistics paper The information below is a continuance of week two, week three, and on week four.

The previous assessment in week two on “real estate research” for thinking of hypothesis on home values in Alvarado, Texas.

Reporting Results of Inferential (Hypothesis) Tests. In this example, the key result is shown in blue and the statistical result, which substantiates the finding, is in red. Descriptive Statistics are used to present quantitative descriptions in a manageable form.

In a research study we may have lots of measures. Or we may measure a large number of people on any measure. Descriptive Statistics See attached descriptive table: Not all statistics in the descriptives table are useful. It is not useful to interpret some variables in terms of mean, standard deviation, skewness, and kurtosis.

Descriptive Statistics paper RES/ July 24, Descriptive Statistics paper The information below is a continuance of week two, week three, and on week four. The previous assessment in week two on “real estate research” for thinking of hypothesis on home values in Alvarado, Texas.

The two main types of descriptive statistics encountered in research papers are measures of central tendency, (averages) and measures of dispersion.

Note: The choice of which particular descriptive statistics to report will affect the “picture” that is presented of the data, and there is the potential to mislead.

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