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Melissa Blaser* was targeting positions as an elementary school principal. She enlisted the help of Tracy M. Parish, president of CareerPlan, Inc. & Executive Career Solutions, to help land her ...
It is imperative in inferring information from data and adhering to a conclusion or decision from that data. Data analysis can stem from past or future data. Data analysis is an analytical skill, commonly adopted in business , as it allows organisations to become more efficient, internally and externally, solve complex problems and innovate .
[4] [5] In the training of school staff in the United States, "[t]he need for professional development ... came to the forefront in the 1960s". [6] Many American states have professional development requirements for school teachers. For example, Arkansas teachers must complete 60 hours of documented professional development activities annually. [7]
Data may be collected, presented and summarised, in one of two methods called descriptive statistics. Two elementary summaries of data, singularly called a statistic, are the mean and dispersion. Whereas inferential statistics interprets data from a population sample to induce statements and predictions about a population. [6] [7] [5]
Hence, in the United Kingdom and some other countries, the term primary is used instead of elementary. [3] There is no commonly agreed on duration of primary education, but often three to six years of elementary school, and in some countries (like the US) the first seven to nine years are considered primary education.
Tukey defined data analysis in 1961 as: "Procedures for analyzing data, techniques for interpreting the results of such procedures, ways of planning the gathering of data to make its analysis easier, more precise or more accurate, and all the machinery and results of (mathematical) statistics which apply to analyzing data." [3]