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Essay / Research Paper Abstract
A 7 page paper discussing six questions in elementary concepts in statistics, particularly those useful in empirical studies. Questions include the topics of frequency table and distribution; finding items of descriptive statistics such as median and standard deviation; the null hypothesis; statistical significance; and sample size required to achieve statistically significant results. Bibliography lists 4 sources.
Page Count:
7 pages (~225 words per page)
File: CC6_KSstatsQues3.rtf
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Unformatted sample text from the term paper:
Not knowing how to produce a frequency table, I first read about the topic at Statistica.com and then opened Microsoft ExcelTM. I listed all numbers in a single
column and then followed Excels instructions for using the frequency formula. The list that Excel returned was inaccurate: it returned the correct value for 0 hours studied, but omitted
the one hour classification. The actual values were correct past that point to 15 hours, but associated with the proper category plus one. I inserted the value for
one hour, then manually checked each other category for accuracy. I arrived at percentages by using Excel, entering "+1 [student studying 0 hours] ? 50 [total students] x 100"
into the cell right of "number of students," then copying that formula to each cell adjacent to a value for "number of students." The following table is the result.
Similarly, I read the information at Statistica.com describing the frequency polygon to find I could not easily create one electronically. Looking at
the numbers of students column, however, I could see that the first three values and the last three values were identical; that the peak of 11 students studying 7 hours
was close to the middle of the distribution; and that values for 8, 9, 10 and 11 hours were higher than those for 3, 4, 5 and 6 hours. Hours
Studied Number of Students % of Total 0 1 2 1 1 2 2 2 4 3 4 8 4 3 6 5 2 4 6 4 8 7 11
22 8 5 10 9 4 8 10 5 10 11 3 6 12 1 2 13 2 4 15 1 2 18 1 2 Totals 50 100
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