The preventable monthly loss at a company has a normal distribution with a mean of $7800 and
a standard deviation of $30. A new policy was put into place, and the preventable loss the next
month was $7620.
What inference can you make about the new policy?
A) Because the probability that the monthly loss would be as low as $7620 is not very small,
the new policy is not working.
B) While the probability that the monthly loss would be as low as $7620 is small, it is not
unexpected.
C) Because the probability that the monthly loss would be as low as $7620 is small, the new
policy is working.
D) The new policy is probably less effective than the one it replaced.
C
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