lab 3

Sheet1

Should Marijuana Be Legal
					So, for your expected frequencies, you are going to multiply the row marginal (male or female) by the column marginal for either "yes" or "no" and divide by the total (210).
	Observed					Expected
	Legalize Marijuana					Legalize Marijuana
Gender	Yes	No	Row Marginal		Gender	Yes	No	Row Marginal
Male	50	24	74		Male	46.5142857143		74
Female	82	54	136		Female			136
Column Marginal	132	78	210		Column Marginal	132	78	210
	Chi-Square Statistics
	Legalize Marijuana
Gender	Yes	No	Row Marginal
Male	0.2612144612				X2 statistic
Female					Df=		(r-1)(c-1)
Column Marginal					P value
Remember: to calculate your chi-square statistic per group, take the (observed frequency- expected frequency)²/ expected frequency