Wells Fargo Bank's call center has representatives that speak both English and Spanish. A random sample of
Question:
a. Compute the mean and standard deviation for the time to complete calls to English-speaking service representatives.
b. Compute the mean and standard deviation for the time to complete calls to Spanish-speaking service representatives.
c. Compute the coefficient of variation for the time to complete calls to English-speaking and Spanish-speaking service representatives. Which group has the greater relative variability in the time to complete calls?
d. Construct box and whisker plots for the time required to complete the two types of calls and briefly discuss.
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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