Conditions for Regression Inference Worksheet with Answer Key

What's on the worksheet

1. In a made-up model for one mango variety, the mass y (grams) of a fruit picked x weeks after its tree flowers has mean _y = 68 + 18x and standard…
2. Each residual plot A to D comes from a least-squares line fitted to a random sample (made-up data).
3. A glaciologist wants to regress a glacier's retreat y (meters in one year) on that year's mean summer temperature x (degrees C) (made-up studies).
4. A physics club measures how far a wind-up toy car rolls, y (cm), after x winds of its key, using winding counts from 5 to 15 given to the trials in…
5. 0 2 4 6 8 10 0 10 20 30 40 dam length
6. A cathedral has 110 stained-glass panels waiting for repair.