STATISTICAL TECHNIQUES-ACCESS ONLY
16th Edition
ISBN: 9780077639648
Author: Lind
Publisher: MCG
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Textbook Question
Chapter 2, Problem 26CE
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% of all packages either early or on-time. Another objective is to never lose a package.
Speedy collected the following data for last month’s performance:
- 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. Construct a relative frequency table for delivery performance last month.
- d. Construct a bar chart of the frequency table for delivery performance for last month.
- e. Construct a pie chart of on-time delivery performance for last month.
- f. Analyze the data summaries and write an evaluation of last month’s delivery performance as it relates to Speedy Swift’s performance objectives. Write a general recommendation for further analysis.
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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 15 minutes of the promised
time), late (package delivered more than 15 minutes past the promised time), or lost (package never delivered). Speedy Swift's
objective is to deliver 99% of all packages either early or on-time. Another objective is to never lose a package.
Speedy collected the following data for last month's performance:
On-time On-time
Early
On-time
Early
On-time
On-time On-time
On-time Late
On-time Late
Early
On-time
Early
On-time
On-time Early
On-time On-time
Early
On-time
Early
On-time
Variable
Scale
Late
Early
On-time
Early
On-time
On-time
Late
Early
On-time
On-time
On-time
On-time Early
On-time
Late
On-time…
Faschip, Ltd., is a new African manufacturer of notebook computers. Their quality target is that 99.999% of the computers they produce will perform exactly as promised in the descriptive literature. In order to monitor their quality performance they include with each computer a large piece of paper that includes a direct—toll-free—phone number to the Senior Vice President of Manufacturing that can be used if the computer does not perform as promised. In the first year Faschip sells 1,000,000 computers.a. If they are achieving their quality target, what is the probability that they will receive fewer than 5 calls? If this occurs what would be a reasonable conclusion about their quality program? b. If they are achieving their quality target, what is the probability that they will receive more than 15 calls? If this occurs, what would be a reasonable conclusion about their quality program?
Sleep Late, a large hotel chain, has been using activity-based costing to determine the cost of a night’s stay at their hotels. One of the activities, “Inspection,” occurs after a customer has checked out of a hotel room. Sleep Late inspects every 10th room and has been using “number of rooms inspected” as the cost driver for inspection costs. A significant component of inspection costs is the cost of the supplies used in each inspection Mary Adams, the chief inspector, is wondering whether inspection labor-hours might be a better cost driver for inspection costs. Mary gathers information for weekly inspection costs, rooms inspected, and inspection labor-hours as follows:
Q.Plot the data and regression line for rooms inspected and inspection costs. Plot the data and regression line for inspection labor-hours and inspection costs. Which cost driver of inspection costs would you choose? Explain.
Chapter 2 Solutions
STATISTICAL TECHNIQUES-ACCESS ONLY
Ch. 2 - DeCenzo Specialty Food and Beverage Company has...Ch. 2 - A pie chart shows the relative market share of...Ch. 2 - In a marketing study, 100 consumers were asked to...Ch. 2 - A total of 1,000 residents in Minnesota were asked...Ch. 2 - Two thousand frequent business travelers are asked...Ch. 2 - Wellstone Inc. produces and markets replacement...Ch. 2 - A small business consultant is investigating the...Ch. 2 - In the first quarter of last year, the 11 members...Ch. 2 - Prob. 3SRCh. 2 - A set of data consists of 38 observations. How...
Ch. 2 - A set of data consists of 45 observations between...Ch. 2 - A set of data consists of 230 observations between...Ch. 2 - A set of data contains 53 observations. The...Ch. 2 - Wachesaw Manufacturing Inc. produced the following...Ch. 2 - The Quick Change Oil Company has a number of...Ch. 2 - The manager of the BiLo Supermarket in Mt....Ch. 2 - The food services division of Cedar River...Ch. 2 - The annual imports of a selected group of...Ch. 2 - Mollys Candle Shop has several retail stores in...Ch. 2 - The following chart shows the number of patients...Ch. 2 - The following frequency distribution reports the...Ch. 2 - Ecommerce.com, a large Internet retailer, is...Ch. 2 - A sample of the hourly wages of 15 employees at...Ch. 2 - The following cumulative frequency and the...Ch. 2 - The cumulative frequency and the cumulative...Ch. 2 - The frequency distribution representing the number...Ch. 2 - The frequency distribution of order lead time at...Ch. 2 - Describe the similarities and differences of...Ch. 2 - Describe the similarities and differences between...Ch. 2 - Alexandra Damonte will be building a new resort in...Ch. 2 - Speedy Swift is a package delivery service that...Ch. 2 - A data set consists of 83 observations. How many...Ch. 2 - A data set consists of 145 observations that range...Ch. 2 - The following is the number of minutes to commute...Ch. 2 - The following data give the weekly amounts spent...Ch. 2 - A social scientist is studying the use of iPods by...Ch. 2 - David Wise handles his own investment portfolio,...Ch. 2 - You are exploring the music in your iTunes...Ch. 2 - The monthly issues of the Journal of Finance are...Ch. 2 - The following histogram shows the scores on the...Ch. 2 - The following chart summarizes the selling price...Ch. 2 - A chain of sport shops catering to beginning...Ch. 2 - The numbers of outstanding shares for 24 publicly...Ch. 2 - A recent survey showed that the typical American...Ch. 2 - Midland National Bank selected a sample of 40...Ch. 2 - Residents of the state of South Carolina earned a...Ch. 2 - A recent study of home technologies reported the...Ch. 2 - Merrill Lynch recently completed a study regarding...Ch. 2 - A total of 5.9% of the prime-time viewing audience...Ch. 2 - Refer to the following chart: a. What is the name...Ch. 2 - The following chart depicts the annual revenues,...Ch. 2 - In 2011, the United States exported a total of 281...Ch. 2 - In the United States, the industrial revolution of...Ch. 2 - One of the most popular candies in the United...Ch. 2 - The number of families who used the Minneapolis...Ch. 2 - Refer to the Real Estate data, which reports...Ch. 2 - Refer to the Baseball 2012 data that report...Ch. 2 - Prob. 53DE
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