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
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.
∑ = 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.