Question

For a recent year the following are the numbers that occurred each month in a city. use a .05 significance level to test the claim that homicides in the city are equally likely for each of the 12 months calculate test statistics, x^2 and p value

Month. Number. Month. Number
Jan. 37 July. 48
Feb. 29 August. 50
March. 47 Sept. 50
Apr 39 Oct. 41
May 45 Nov. 36
June. 48 Dec. 36

Answers

PsyDAG
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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