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:

Mood Disorders

A category of mental health disorders characterized by significant changes or disturbances in mood or emotional state, such as depression or bipolar disorder.

Anxiety Disorders

A group of mental health diagnoses that lead to excessive nervousness, fear, apprehension, and worry.

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A psychological condition where an individual experiences discomfort or distress due to a mismatch between their biological sex and gender identity.

Gender Reassignment

A medical and social process by which a person's gender is adjusted to align with their gender identity, often involving hormonal treatment and surgeries.