Author Question: Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a ... (Read 78 times)

abarnes · **on:** Jul 25, 2018

Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a score of 688 on a test with a mean of 493 and a standard deviation of 150? (Assume that the distributions being compared have approximately the same shape

.)
A) A score of 92
B) A score of 688
C) Both scores have the same relative position.

Question 2

A computer network manager wants to test the reliability of some new and expensive fiber-optic Ethernet cables that computer department just received. The computer department received 7 boxes containing 10 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 2 cables chosen randomly within that box. What is the sample?
A) The 7 boxes
B) The one box that was chosen at random from the 7 boxes
C) The 2 cables chosen for testing
D) 70 cables