Multiple Choice
The time required for a citizen to complete the 2010 U.S. Census "long" form is normally distributed with a mean of 40 minutes and a standard deviation of 10 minutes. The slowest 10 percent of the citizens would need at least how many minutes to complete the form?
A) 27.2
B) 35.8
C) 52.8
D) 59.6 Using Excel =NORM.INV(.90,40,10) = 52.82, or 40 + 1.282(10) = 52.82 using AppendixC.
Correct Answer:
Verified
Correct Answer:
Verified
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