Due Monday, November 13th 1. 2 points) The following partially completed ANOVA t

Question

Due Monday, November 13th 1. 2 points) The following partially completed ANOVA table involves a study that attempted to quantify the effect of socioeconomic status on learning science. The response variable was "Rate of Talk" (the number of on-task talk speech acts per minute) during group work. Data were also collected on the variable "Socioeconomic status" (low, middle, high) and the variable "Gender" (female, male). There were 12 students at each status-gender level combination, for a total of 72 subjects. Fill in the numbers in the ANOVA table below, and use the information to perform a Complete Two-way ANOVA analysis at the 5% significance level Source of Variation Status Gender Interaction Error Total df Sum of Squares Mean Square 14.49 0.15 0.95 0.0120 71

Explanation / Answer

Mean Square (Status)=14.49*0.0120=0.17388

Mean Square (Gender)=0.15*0.0120=0.0018

Mean Square (Interaction)=0.95*0.0120=0.0114

Sum of Square (Status)=0.17388*2=0.34776

Sum of Square (Gender)=0.0018*1=0.0018

Sum of Square (Interaction)=0.0114*2=0.0228

Sum of Square (Error)=0.0120*66=0.792

Interaction is not significant at 0.05 level

Source of Variation df Sum of Squares Mean Square F Status 2 0.34776 0.17388 14.49 Gender 1 0.0018 0.0018 0.15 Interaction 2 0.0228 0.0114 0.95 Error 66 0.792 0.012 Total 71

Interaction is not significant at 0.05 level

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