Posted by **Sophia** on Sunday, June 8, 2014 at 6:48pm.

Describe the chi-square goodness-of-fit test.

- Psychology -
**Ms. Sue**, Sunday, June 8, 2014 at 6:52pm
http://www.stat.yale.edu/Courses/1997-98/101/chigf.htm

- Psychology -
**PsyDAG**, Monday, June 9, 2014 at 1:02pm
If you cannot understand the above site, possibly this might help.

Use the Chi-square (X^2) method.

X^2 = ∑ (O-E)^2/E, where O = observed frequency and E = expected frequency.

∑ = sum of all the cells.

E = (column total * row total)/grand total

df = n - 1, where n = number of cells

Look up value in X^2 table in the back of your textbook.

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