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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 |
Abby's model is ________________.
a) y = 19.68247 + 10.01176 x1 + 1.965934 x2
b) y = 1.965934 + 9.940612 x1 + 6.416667 x2
c) y = 10.01176 + 0.174564 x1 + 7.655776 x2
d) y = 19.68247 - 1.735272 x1 + 49.12456 x2
e) y = 19.68247 + 1.735272 x1 + 49.12456 x2
Answer
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Related questions
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df
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Q:
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1
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0.224675
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5
3.775 Annie's sample size is __________.
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Q:
Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city. She gathers data from six cities in which the tours are offered. Annie's dependent variable is annual sales revenues and her independent variable is the city population. Regression analysis of the data yielded the following tables. Coefficients
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5
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Q:
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Q:
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Q:
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Q:
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Q:
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Q:
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Q:
Maureen McIlvoy, owner and CEO of a mail order business for wind surfing equipment and supplies, is reviewing the order filling operations at her warehouses. Her goal is 100% of orders shipped within 24 hours. In previous years, neither warehouse has achieved the goal, but the East Coast Warehouse has consistently out-performed the West Coast Warehouse. Her staff randomly selected 200 orders from the West Coast Warehouse (population 1) and 400 orders from the East Coast Warehouse (population 2), and reports that 190 of the West Coast Orders were shipped within 24 hours, and the East Coast Warehouse shipped 372 orders within 24 hours. Assuming a= 0.05, the observed zvalue is ___________________.
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