Speedy Swift is a package delivery service that serves the greater Atlanta, Geor

Question

Speedy Swift is a package delivery service that serves the greater Atlanta, Georgia metropolitan

area. To maintain customer loyalty, one of Speedy Swift’s performance objectives

is on-time delivery. To monitor its performance, each delivery is measured on the

following scale: early (package delivered before the promised time), on-time (package

delivered within 5 minutes of the promised time), late (package delivered more than

5 minutes past the promised time), lost (package never delivered). Speedy Swift’s objective

is to deliver 99 percent of all packages either early or on-time. Another objective is to never lose a package.

a. What scale is used to measure delivery performance? What kind of variable is delivery

performance?

b. Construct a frequency table for delivery performance for last month.

c. Analyze the data summaries and write an evaluation of last month’s delivery performance

as it relates to Speedy Swift’s performance objectives.

Peformance Specification range On-time On-time Early Early Early Late Early Lost On-time On-time Early On-time On-time On-time On-time On-time On-time On-time Late Late Early On-time Early On-time Early On-time Early On-time Late Early On-time Early On-time On-time Late Early On-time Late On-time On-time On-time On-time On-time On-time On-time On-time On-time Early On-time Early Late Early On-time On-time On-time On-time On-time Early On-time On-time Early On-time Late Early On-time On-time Early On-time On-time Lost Lost Early On-time Early On-time On-time On-time On-time On-time On-time On-time On-time Early On-time Late On-time On-time On-time On-time On-time On-time Late On-time On-time On-time On-time On-time Early On-time On-time On-time On-time On-time On-time

Explanation / Answer

a) the scale that measure delivery performance is ordinary, and the delivery performance variable is discrete

b)

C)

Frequency Early 22 Late 9 Lost 2 On-time 67 Total 100

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