Roberta M. Milgram and Norman A. Milgra.m report on the relationship between anxiety and warfare in an article, "The Effect of the Yom Kippur War on Anxiety Level in Israeli Children," in The Journal...

Roberta M. Milgram and Norman A. Milgra.m report on the relationship between anxiety and warfare in an article, "The Effect of

the Yom Kippur War on Anxiety Level in Israeli Children," in

The Journal of Psychology (September, 1976). The following

data are presented where the measurements are made on the Sarason

Scale for anxiety (20 maxim1.UI1.).

(a) Compare anxiety levels for boys and girls in peacetime by

testing the null hypothesis of no difference between the

two groups (a= 0.10).

(b) Test the hypothesis that anxiety increases during war in

children using the data for the girls (a= 0.05). What

assumptions of the two-sample test situation are violated

in comparison?