The Global Business Travel Association reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. Do not round intermediate calculations.Current YearPrevious Year Current YearPrevious Year468231 285216342282 699498552360 675255252192 702222396375 477381234174 621357 What is the p-value?p-value (to 3 decimals)Degrees of freedom b. What is the sample mean domestic airfare for business travel for each year?Current Year$ (to 2 decimals)Previous Year$ (to 2 decimals) c. What is the percentage change in the airfare for the one-year period? % (to 2 decimals)

p-valueStep 1: Calculate the Differences Between Each Pair of ObservationsFor each pair of…

Answered: The Global Business Travel Association…

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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The Global Business Travel Association reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. Do not round intermediate calculations.

Current Year	Previous Year	Current Year	Previous Year
468	231	285	216
342	282	699	498
552	360	675	255
252	192	702	222
396	375	477	381
234	174	621	357

What is the p-value?

p-value	(to 3 decimals)
Degrees of freedom

b. What is the sample mean domestic airfare for business travel for each year?

Current Year	$ (to 2 decimals)
Previous Year	$ (to 2 decimals)

c. What is the percentage change in the airfare for the one-year period?
% (to 2 decimals)

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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