Retail Price Data for N = 60 Hard Disk Drives $\mathrm { y } =$

question 129

Essay

Retail price data for n = 60 hard disk drives were recently reported in a computer
magazine. Three variables were recorded for each hard disk drive: $\mathrm { y } =$ Retail PRICE (measured in dollars)
$\mathrm { x } _ { 1 }$ = Microprocessor SPEED (measured in megahertz)
(Values in sample range from 10 to 40 )
$\mathrm { x } _ { 2 } = \mathrm { CHIP }$ size (measured in computer processing units)
(Values in sample range from 286 to 486 )
A first-order regression model was fit to the data. Part of the printout follows:


Interpret the $95 \%$ prediction interval for $y$ when $x _ { 1 } = 33$ and $x _ { 2 } = 386$ .

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Definitions:

Robert Solow

An American economist known for his work on the theory of economic growth that emphasizes the role of technology and technological innovation.

Triple-E Class

A classification of the largest container ships, standing for Economy of scale, Energy efficiency, and Environmental performance.

Shipping Containers

Standardized reusable steel boxes used for the secure and efficient transport of goods across various modes of transport, from ships to trains and trucks.

Maersk Line

Maersk Line, a subsidiary of the Maersk Group, operates one of the world's largest fleets of container ships and is instrumental in global trade and logistics.