Using score = 544.18 + 2.0659 × income (000), predict the credit score of a client earning 75,000. Tolerance ±0.5.
Using score = 544.18 + 2.0659 × income (000), predict the credit score of a client earning 75,000. Tolerance ±0.5.
Answer
699.1
Cells - Predicted score at $75,000 · ±0.5 ŷ = 544.18 + 2.0659 × 75 = 544.18 + 154.94 = 699.1. Income 75 is inside the fitted range 35–110, so the prediction is legitimate. Excel: =FORECAST.LINEAR(75, y, x).
IS1 §12.3–12.5 (interpretation template, extrapolation), IBS1 §13.6, CC BY 4.0 — shape only; S21 W3 handout (interpretation sentences — shape only); original dataset