An Airline Wants to Select a Computer Software Package for Its

question 46

Multiple Choice

An airline wants to select a computer software package for its reservation system.Four software packages (1,2,3,and 4) are commercially available.An experiment is set up in which each package is used to make reservations for 5 randomly selected weeks and data on the number of Copyright ©2019 Pearson Education,Inc.
18-18 A Roadmap for Analyzing Data
Passengers that are bumped over a month are collected.(A total of 20 weeks was included in the experiment. ) The variability of the number of passengers that are bumped is found to be roughly the same for the 4 packages.The distribution on the number of passengers that are bumped has been found out to be right-skewed for package 1 and 4,left-skewed for package 2 and normal for package 3.Which of the following tests will be the most appropriate to find out if the mean number of passengers being bumped over a month is the same across the 4 packages?

• A)Paired t test.
• B)Pooled-variance t test.
• C)One-way ANOVA F test for differences among more than two means.
• D)Kruskal-Wallis rank test.

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Definitions:

Reading Skills

The abilities involved in understanding written language, including decoding, comprehension, and fluency.

Peer Relationships

Social connections between individuals of approximately the same age or maturity level, often providing a source of friendship, learning, and growth.

Phonics Instruction

A method of teaching reading and spelling that stresses symbol-sound relationships, typically used in the beginning stages of reading.

Metalinguistic Awareness

The ability to think about and reflect on the nature and functions of language, understanding that words can be objects of thought.