Short Answer
SCENARIO 7-7
A recent survey revealed that American's Christmas spending averaged $830. Use this as the
population mean American's Christmas spending. Suppose American's Christmas spending is
normally distributed with a standard deviation of $220. Random sample of size 100 are selected from
the population of American consumers.
-Referring to Scenario 7-7, what is the probability that the sample mean spending is less than
$815 or more than $855?
Correct Answer:
Verified
Correct Answer:
Verified
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