Download Resources for Statistics Descriptive Statistics Measures of Central

Resources for Statistics
Descriptive
Statistics
Measures of
Central Tendency
Mean, Median, Mode, Minimum, Maximum, Range, Interquartile
Range (IQR)
http://www.mathportal.org/calculators/statisticscalculator/descriptive-statistics-calculator.php
Formula
Standard
Deviation
Calculator
http://www.mathportal.org/calculators/statisticscalculator/standard-deviation-calculator.php
Formula
Z-Score
Video on how to
calculate
Critical Values
Tables
Formula
Chi-Square
Video on how to
calculate
contingency table
chi-square test
Degrees of
freedom formula
Critical Values
Tables
https://www.khanacademy.org/math/probability/statisticsinferential/normal_distribution/v/ck12-org-normal-distributionproblems-z-score (7:48)
http://www2.parkland.edu/businesstraining/documents/zscoretable.
pdf
https://www.khanacademy.org/math/probability/statisticsinferential/chi-square/v/contingency-table-chi-square-test (17:38)
One-variable: Df = K – 1
Two variable: (# rows -1)*(#columns-1)
(K = number of categories)
https://people.richland.edu/james/lecture/m170/tbl-chi.html
http://www.stat.wmich.edu/~hzz3534/stat3660/lecture/Chi_Square_
table.jpg
Formula
T-Test
Calculator
Degrees of
freedom formula
Critical Values
Table
Formula
Calculator
Correlation
(Pearson’s r) Degrees of
freedom formula
Critical Values
Tables
http://www.mathportal.org/calculators/statistics-calculator/t-testcalculator.php
(n1-1) + (n2-1)
http://www.sjsu.edu/faculty/gerstman/StatPrimer/t-table.pdf
http://www.socscistatistics.com/tests/pearson/Default2.aspx
df = N - 2
http://www.radford.edu/~jaspelme/statsbook/Chapter%20files/Tabl
e_of_Critical_Values_for_r.pdf