Speedy Package Speedy Package is a same-day package delivery service that operat

Question

Speedy Package Speedy Package is a same-day package delivery service that operates in Chicago. Each package has a shipping label that is attached to the package and is also electronically scanned and entered into Speedy’s data network when the package is picked up and when it is delivered. The electronic labels are transmitted via a device that operates on a cell phone network.

1. Assuming that each label is 1,000 bytes long, how long does it take to transmit one label over the cell network, assuming that the cell phone network operates at 144 kbps (144,000 bits per second) and that there are 8 bits in a byte?

2. If Speedy were to upgrade to the new, faster digital phone network that transmits data at 200 Kbps (200,000 bits per second), how long would it take to transmit a label?

Explanation / Answer

a)How long does it take to transmit each label?

144,000/8 = 18,000 bytes/second

1,000/18,000 = .056 seconds

b)200,000/8 = 25,000 bytes/second

1,000 /25,000 = .04 seconds

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