The distribution of service times at the drive-up window of the Kermit Roosevelt Bank is bell shaped,
Question:
The distribution of service times at the drive-up window of the Kermit Roosevelt Bank is bell shaped, with a mean of 3.5 minutes and a standard deviation of 1.1 minutes. What percentage of service times will be?
a. Between 3.5 and 4.6 minutes?
b. Between 2.4 and 5.7 minutes?
c. More than 6.8 minutes?
Distribution
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a The interval is from the mean to 1 standard deviation to the right of the mean since z 46 1 Th...View the full answer
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Related Book For 
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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