Percents and Expected Frequencies.

This exercise will be completed in class on February 13.  If you miss class, submit it to the Assignment Dropbox instead.

Your Name ......................................................................

Consider the following answers to the question "I favor Marinated Artichoke Hearts as our National Vegetable":

85 men agreed
95 women agreed
15 men disagreed
25 women disagreed

Answer the following questions:

1. What percent of the men agreed?
2. What percent of the women disagreed?
3. What percent of those who agreed were men?
4. What percent of those who disagreed were women?
5. What percent of the respondents agreed?
6. What percent of the respondents were women?
7. Fill in the Table:

Gender and Belief that Marinated Artichoke Hearts should be the National Vegetable

Men Women Total
Agree . . .
Disagree . . .
. 100%   (N =  ) 100% (N =      ) 100%  (N=       )

8. Now, try figuring out some expected frequencies.  What would you expect to be the cell frequencies if there was no difference between Men and Women on the issue, given the marginal frequencies provided?
 

Men Women Total
Agree . . 180
Disagree . . 40
. 100
 120
 220

9.  Now compute the Chi Square Statistic, using the WEB Chi Square Calculator.  (If you do this in class, the calculation will be done on the screen).  Enter the following information:

.        .Degrees of Freedom   .         .Chi Square
.        .Significance (yes or no, or p = )