Solution: The waiting times to see a teller at a certain bank on Saturday mornings are approximately normally distributed with a mean of 2.9 minutes and
Question: The waiting times to see a teller at a certain bank on Saturday mornings are approximately normally distributed with a mean of 2.9 minutes and a standard deviation of 2.1 minutes. Use z-scores to address the following:
Find the probability that a randomly selected bank customer on a Saturday morning has to wait
- less than 2.4 minutes?
- more than 5 minutes?
- Find the value of the 85th percentile of the waiting times. Interpret what this X value means relevant to the problem.
- Find the time that no more than 5 percent of the customers have to wait.
Deliverable: Word Document 
![[Steps Shown] The A.C. Nielsen Company reports](/images/solutions/MC-solution-library-58821.jpg "[Steps Shown] The A.C. Nielsen Company reports that about 80% of")
[Steps Shown] The A.C. Nielsen Company reports that about 80% of
![[See Solution] In problem 4, find the](/images/solutions/MC-solution-library-58822.jpg "[See Solution] In problem 4, find the mean and standard deviation")
[See Solution] In problem 4, find the mean and standard deviation
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[Solution] The Evans Department Store has experienced a 4.5 %
(Step-by-Step) According to the U.S. National Center for Health Statistics,
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[Solution] According to international Mass Retail Assn., girls
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