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Question

Abby Kratz, a market specialist at the market research firm of Saez, Sikes, and Spitz, is analyzing household budget data collected by her firm. Abby's dependent variable is weekly household expenditures on groceries (in $'s), and her independent variables are annual household income (in $1,000's) and household neighborhood (0 = suburban, 1 = rural). Regression analysis of the data yielded the following table.

 Coefficients Standard Error t Statistic p-value
Intercept 19.68247 10.01176 1.965934 0.077667
x1 (income) 1.735272 0.174564 9.940612 1.68E-06
x2 (neighborhood) 49.12456 7.655776 6.416667 7.67E-05

For a rural household with $90,000 annual income, Abby's model predicts weekly grocery expenditure of ________________.
a) $156.19
b) $224.98
c) $444.62
d) $141.36
e) $175.86

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