Question: is theinterraction effect significant ? Twenty high school-aged students were randomly selected from three different school districts: a district in the city, a district in
is theinterraction effect significant ?

Twenty high school-aged students were randomly selected from three different school districts: a district in the city, a district in the suburbs, and a district in a rural area. Each group of twenty students consisted of ten boys and ten girls. Each of the students was asked what price they paid for their last haircut. The two-way ANOVA output is shown below. Is the interaction effect statistically significant at the 5% significance level? Tests of Between-Subjects Effects Dependent Variable: Price paid for last haircut Type Ill Sum Source of Squares Mean Square F Sig SEX 267 4.005 267 4.005 67.379 . 000 REGION 703.583 N 351.791 8. 864 . 000 SEX * REGION 231.803 2 115.901 2.920 062 Error 2143.037 54 39. 686 Corrected Total 5752.427 59
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