Answered: Do people walk faster in the airport…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Do people walk faster in the airport when they are departing (getting on a plane) or do they walk faster when they are arriving (getting off a plane)? A reputable researcher measured the walking speed of random travelers in two International Airports. His findings are summarized in the table.

Direction of Travel	Departure	Arrival
Mean speed (feet per minute)	261	268
Standard deviation (feet per minute)	52	39
Sample size	35	35

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Do individuals walk at different speeds depending on whether they are departing or arriving at the

α=0.05

level of significance? Let

μ1

represent the mean speed of people departing and

μ2

represent the mean speed of people arriving.

State the null and alternative hypothesis.

H0:

μ1=μ2

H1:

μ1>μ2

H0:

μ1=μ2

H1:

μ1≠μ2

H0:

μ1<μ2

H1:

μ1>μ2

H0:

μ1=μ2

H1:

μ1<μ2

Determine the P-value for this hypothesis test.

P-value=nothing

(Round to three decimal places as needed.)

Choose the correct conclusion.

Reject

H0.

There

sufficient evidence at the

α=0.05

level of significance to say that travelers walk at different speeds depending on whether they are arriving or departing.

Reject

H0.

There

is not

sufficient evidence at the

α=0.05

level of significance to say that travelers walk at different speeds depending on whether they are arriving or departing.

Do not reject

H0.

There

sufficient evidence at the

α=0.05

level of significance to say that travelers walk at different speeds depending on whether they are arriving or departing.

Do not reject

H0.

There

is not

sufficient evidence at the

α=0.05

level of significance to say that travelers walk at different speeds depending on whether they are arriving or departing.

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