Here are prices for the external disk drives we saw
Here are prices for the external disk drives we saw in Chapter 15, exercise 10:
The least squares line is Price = 15.11 + 62.417 capacity.
The assumptions and conditions for regression are met.
SE (b1) = 11.33 and se = 42.04
a) Disk drives keep growing in capacity. Some teach experts now talk about Petabyte (PB = 1000 TB = 1,000,000 GB) drives. What does this model predict that a Petabyte-capacity drive will cost?
b) Is this prediction likely to be useful? Explain.
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