While in College,Marty and Laura Each Buy 15 Bus Tickets

question 11

Multiple Choice

While in college,Marty and Laura each buy 15 bus tickets per month.After they graduate and have full-time jobs,Marty buys 0 bus tickets per month and Laura buys 28 bus tickets per month.Comparing income elasticity of demand for bus tickets,Marty's

• A)is negative,and Laura's is positive.
• B)is positive,and Laura's is negative.
• C)is zero,and Laura's is positive.
• D)is zero,and Laura's is negative.

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Definitions:

Independent Samples

Independent samples refer to two or more groups of observations that are collected from separate populations and are not dependent on each other.

Wilcoxon Rank-Sum Test

A nonparametric statistical test used to compare two independent samples to determine if they come from the same distribution.

Nonparametric Test

A statistical test that does not assume a specific distribution for the variable being analyzed.

Simple Random Samples

A subset of a statistical population in which each member of the subset has an equal probability of being chosen.