Statistical techniques are classified into two major categories

 

Statistical techniques are classified into two major categories: descriptive and inferential. Describe the general purpose of each category.
Define the concept of “sampling error.” Note: Your definition should include the concepts of sample, population, statistic, and parameter.
Calculate each value requested for the following set of scores. Scores: 1, 2, 0, 4
a. ΣX
b. ΣX2
c. (ΣX)2
Calculate each value requested for the following set of scores: X Y
1 5
3 1
0 -2
2 -4
a. ΣX
b. ΣY
c. ΣXΣY
d. ΣXY
Calculate each value requested for the following set of scores. Scores: 5, 2, 4, 2
a. ΣX – 2
b. Σ(X – 2)
c. Σ(X – 2)2

 

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