BASIC BUSINESS STAT LL W/MYLAB
14th Edition
ISBN: 9780135991459
Author: BERENSON
Publisher: PEARSON
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Chapter 2, Problem 94PS
The Air Travel Consumer Report, a monthly product of the Department of Transportation’s Office of Aviation Enforcement and Proceedings (OAEP), is designed to assist consumer with information on the quality of service provided by airlines. The report includes a summary of consumer complaints by industry group and by complaint category. A breakdown of 1,303 September 2016 consumer complaints based on industry group is given in the following table:
a. Construct a Pareto chart for the number of complaints by industry group. What industry group accounts for mast of the complaints?
The 1,303 consumer complaints against airlines are summarized by type in the following table:
b. Construct pie and doughnut charts to display the percentage of complaints by type. What complaint category accounts for most of the complaints?
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The Canmark Research Center Airport Customer Satisfaction Survey uses an online questionnaire to provide airlines and airports with customer satisfaction ratings for all aspects of the customers' flight experience. After completing a flight, customers receive an email asking them to go to the website and rate a variety of factors, including the reservation process, the check-in process, luggage policy, cleanliness of gate area, service by flight attendants, food/beverage selection, on-time arrival, and so on. A five-point scale, with Excellent (E), Very Good (V), Good (G), Fair (F), and Poor (P), is used to record the customer ratings for each survey question. Assume that passengers on a Delta Airlines flight from Myrtle Beach, South Carolina, to Atlanta, Georgia, provided the following ratings for the question, "Please rate the airline based on your overall experience with this flight." The sample ratings are shown below.
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The Canmark Research Center Airport Customer Satisfaction Survey uses an online questionnaire to provide airlines and airports with customer satisfaction ratings for all aspects of the customers' flight experience. After completing a flight, customers receive an email asking them to go to the website and rate a variety of factors, including the reservation process, the check-in process, luggage policy, cleanliness of gate area, service by flight attendants, food/beverage selection, on-time arrival, and so on. A five-point scale, with Excellent (E), Very Good (V), Good (G), Fair (F), and Poor (P), is used to record the customer ratings for each survey question. Assume that passengers on a Delta Airlines flight from Myrtle Beach, South Carolina, to Atlanta, Georgia, provided the following ratings for the question, "Please rate the airline based on your overall experience with this flight." The sample ratings are shown below.
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A foundation asked each person in a representative sample of high school students and in a representative sample of high school teachers which of the rights guaranteed by the First Amendment they thought was the most important. Suppose that the sample size for each sample was 1,000. Data consistent with summary values from the study are summarized in the accompanying table.
Most Important First Amendment Right
Freedom
of
Speech Freedom
of the
Press Freedom
of
Religion Freedom to
Peacefully
Assemble Freedom to
Petition the
Government
Students 655 30 250 20 45
Teachers 400 60 420 50 70
A button hyperlink to the SALT program that reads: Use SALT.
(a)
Carry out a hypothesis test to determine if there is convincing evidence that the proportions falling into the five First Amendment rights categories are not the same for teachers and students. Use a significance level of ? = 0.01.
Chapter 2 Solutions
BASIC BUSINESS STAT LL W/MYLAB
Ch. 2 - A categorical variable has three categories, with...Ch. 2 - The following data represent the responses to two...Ch. 2 - The following table, stored in Smartphones Sales,...Ch. 2 - The Consumer Financial Protection Bureau reports...Ch. 2 - In addition to the impact of Big Data, what...Ch. 2 - This table represents the summer power-generating...Ch. 2 - Timetric’s 2016 survey of insurance...Ch. 2 - A survey of 1,520 Americans adults asked “Do you...Ch. 2 - A study of selected Kickstarter projects showed...Ch. 2 - Do special recommendations increase ad...
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