(Solved): 11. Disk drives have been getting larger. Their capacity is now often given in terabytes (TB) where ...

11. Disk drives have been getting larger. Their capacity is now often given in terabytes (TB) where 1 TB = 1000 gigabytes, or about a trillion bytes. A study of external disk drives finds the data available below. The least squares line was found to be Price = 19.46 +56.551 Capacity with s = 38.76 and SE (b?) = 10.4441. The assumptions and conditions for regression are met. Complete parts a through c below. 3 Click the icon to view the external disk drive data. a) Disk drives keep growing in capacity. Some tech experts now talk about the Petabyte (PB = 1000 TB = 1,000,000 GB) drives. What does this model predict that a Petabyte-capacity drive will cost? The predicted price of a 1 PB hard drive is $ (Round to the nearest cent as needed.) b) Find a 95% prediction interval for the price of a 1 PB hard drive. (Round to two decimal places as needed. Do not include the $ symbol in your answer.) c) Are these predictions likely to be useful? Explain. A. The predictions are likely not useful because they are extreme extrapolations. B. The predictions are likely useful because they involve a high level of confidence. C. The predictions are likely useful because the data contain leveraged outliers. D. The predictions are likely not useful because they estimate the predicted mean Price of a 1 PB drive. 3: External Disk Drive Data Mean SD Capacity (TB) 0.15 0.25 0.32 1 2 234 3 1.53 1.51 Price ($) 34.00 37.95 50.50 85.00 105.00 130.00 300.00 106.06 92.69