A study analyzes relationships among y = percentage vote for Democratic candidate, x1 = percentage of registered voters who are Democrats, and x2 = percentage of registered voters who vote in the election, for several congressional elections in 2016. The researchers expect interaction, since they expect a higher slope between y and x1 at larger values of x2 than at smaller values. They obtain the prediction equation ˆy = 20+0.30x1 +0.05x2 +

0.005x1x2. Does this equation support the direction of their prediction? Explain.