Answered: Use the departure delay times and the…

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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Use the departure delay times and the arrival delay times to test the claim that there is a correlation between departure delay times and arrival delay times. Test for rank correlation with a 0.05 significance level.

Dep_Delay Arr_delay

-1 -30

-3 -24

-3 -25

4 -7

-3 9

-3 -17

-4 -16

0 -36

-2 -29

2 -15

2 -12

-1 -35

18 -3

-13 -34

9 -4

-2 -1

-1 6

2 -6

0 -24

7 -5

-1 -9

-10 -39

5 -12

-6 -36

17 -6

-6 -30

-1 -10

-2 -31

-3 -19

70 46

1 -27

-1 -26

10 9

1 -15

-7 -32

31 11

16 -26

62 30

147 107

3 -14

-15 10

0 145

51 20

12 -4

12 12

121 105

0 -32

0 -28

a. Determine the null and alternative hypothesis.

Determine the correlation coefficient (round to three decimals).

Determine the crtical values (round to three decimals).

b.State the conclusion.

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