The time it takes to process phone orders in a small florist/gift shop is normally distributed with a mean of 6 minutes and a st
andard deviation of 3 minutes. What cutoff value would separate the 2.5% of orders that take the most time to process? A) 4.76 minutes
B) 3.52 minutes
C) 10.01 minutes
D) 11.00 minutes
E) 12.00 minutes
A normal curve has approximately 95% of graph between mean - 2sd and mean + 2sd So 95% of the times will be between 0 and 12 minutes. 6 - 2x3 to 6 + 2x3 2.5% will take over 12 minutes
Strangely 2.5% will also take less than 0 minutes to process which shows the normal curve is not perfect in this example.
<span>First, use the equation of the trend line to find the IQ that is expected by the GPA. Next, use the other equation of the trend line to find the SAT that is predicted by the IQ.</span>
