Question: 6.20 Growing icicles. Table 4.2 (page 87) gives data on the growth of icicles over time. Let's look again at Run 8903, for which a

6.20 Growing icicles. Table 4.2 (page 87) gives data on the growth of icicles over time. Let's look again at Run 8903, for which a slower flow of water produces faster growth.

(a) How can you tell from a calculation, without drawing a scatterplot, that the pattern of growth is very close to a straight line?

(b) What is the equation of the least-squares regression line for predicting an icicle's length from time in minutes under these conditions?

(c) Predict the length of an icicle after one full day. This pre diction can't be trusted. Why not?

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