A computer network manager wants to test the reliability of some new and expensive fiber-optic Ethernet cables that the computer department just received.The computer department received 7 boxes containing 20 cables each.The manager does not have the time to test every cable in each box.The manager will choose one box at random and test 4 cables chosen randomly within that box.What is the population parameter of interest?

Question

Quizplus · Accepted Answer

The population parameter of interest is the proportion of reliable cables. This is because the manager wants to test the reliability of the cables, and the proportion of reliable cables in the population (all the cables received by the computer department) is what will provide information about their reliability. Testing a sample of four randomly chosen cables from one randomly chosen box will give an estimate of this proportion. Therefore, the best choice is C.

A Computer Network Manager Wants to Test the Reliability of Some