You must recommend three airlines to the Director of the Grayson County Airport.

Question

You must recommend three airlines to the Director of the Grayson County Airport.After speaking with him, you determine the following weights:

1. Percent of on-time arrivals = 0.3

2. Percent of Chronically (>5%) Cancelled Flights = 0.2

3. Mishandled Baggage Reports per 100,000 Passengers = 0.15

4. Involuntary Denied Boardings per 100,000 Passengers = 0.1

5. Complaints per 100,000 Enplanements = 0.25

A) Rank the airlines using the range index method

B) Rank the airlines using the percentile index method

C) Which three airlines to you recommend? Explain

Carrier

Percent of on-time arrivals

Percent of Chronically (>5%) Cancelled Flights

Mishandled Baggage Reports per 100,000 Passengers (Pax)

Involuntary Denied Boardings per 100,000 Pax

Complaints per 100,000 Enplanements

Alaska

89.4

1.3

2.49

0.28

0.43

American

85.7

3.8

3.03

0.69

3.1

Delta

91.7

0.0

1.47

0.14

0.63

Envoy

87.8

5.4

4.85

1.79

1.32

Expressjet

84.2

4.5

3.67

1.52

0.51

Frontier

84.9

0.9

2.51

1.22

3.69

Hawaiian

82.8

1.3

2.72

0.04

1.46

Jetblue

80.2

3.8

1.52

0.01

1.92

Skywest

85.7

2.5

2.91

1.2

0.53

Spirit

77.4

2.7

2.27

0.15

11.71

Southwest

88.0

0.8

2.85

1.17

0.49

United

87.7

1.6

2.23

0.63

2.33

Virgin America

84.3

1.4

0.74

0.09

1.92

Carrier

Percent of on-time arrivals

Percent of Chronically (>5%) Cancelled Flights

Mishandled Baggage Reports per 100,000 Passengers (Pax)

Involuntary Denied Boardings per 100,000 Pax

Complaints per 100,000 Enplanements

Alaska

89.4

1.3

2.49

0.28

0.43

American

85.7

3.8

3.03

0.69

3.1

Delta

91.7

0.0

1.47

0.14

0.63

Envoy

87.8

5.4

4.85

1.79

1.32

Expressjet

84.2

4.5

3.67

1.52

0.51

Frontier

84.9

0.9

2.51

1.22

3.69

Hawaiian

82.8

1.3

2.72

0.04

1.46

Jetblue

80.2

3.8

1.52

0.01

1.92

Skywest

85.7

2.5

2.91

1.2

0.53

Spirit

77.4

2.7

2.27

0.15

11.71

Southwest

88.0

0.8

2.85

1.17

0.49

United

87.7

1.6

2.23

0.63

2.33

Virgin America

84.3

1.4

0.74

0.09

1.92

Explanation / Answer

Rank by range inex method

Carrier

Percent of

on-time

arrivals

Percent of

chronicaly

(>5%)

cancelled

flight

mishandlle

d baggage

reports per

1000000

passanger

involuntar y

denied

boaridngs

per

1000000

complint s per

1000000

enplanem

ents

Rank-

percent

of on

time

arrivals

Rank-

percent

of chronicaly

(>5%)

cancelled

flight

Rank-

mishandll

ed beggege

reports

per

1000000

pressanger

Rank-

involunta

ry denied

boaridngs

per

1000000

1-

compalint s per

1000000

enplanem

ents

Rank by percentile inex method

Carrier

Percent of

on-time

arrivals

Percent of

chronicaly

(>5%)

cancelled

flight

mishandlle

d baggage

reports per

1000000

passanger

involuntar y

denied

boaridngs

per

1000000

complint s per

1000000

enplanem

ents

Rank-

percent

of on

time

arrivals

Rank-

percent

of chronicaly

(>5%)

cancelled

flight

Rank-

mishandll

ed beggege

reports

per

1000000

pressanger

Rank-

involunta

ry denied

boaridngs

per

1000000

1-

compalint s per

1000000

enplanem

ents

Carrier

Percent of

on-time

arrivals

Percent of

chronicaly

(>5%)

cancelled

flight

mishandlle

d baggage

reports per

1000000

passanger

involuntar y

denied

boaridngs

per

1000000

complint s per

1000000

enplanem

ents

Rank-

percent

of on

time

arrivals

Rank-

percent

of chronicaly

(>5%)

cancelled

flight

Rank-

mishandll

ed beggege

reports

per

1000000

pressanger

Rank-

involunta

ry denied

boaridngs

per

1000000

1-

compalint s per

1000000

enplanem

ents

Alaska 89.40 1.30 2.49 0.28 0.43 2 9 8 8 13 American 85.70 3.80 3.03 0.69 3.10 6 3 3 6 3 Delta 91.70 0.00 1.47 0.14 0.63 1 13 12 10 9 Envoy 87.80 5.40 4.85 1.79 1.32 4 1 1 1 8 Expressjet 84.20 4.50 3.67 1.52 0.51 10 2 2 2 11 Frontier 84.90 0.90 2.51 1.22 3.69 8 11 7 3 2 Hawaiian 82.80 1.30 2.72 0.04 1.46 11 9 6 12 7 Jetblue 80.20 3.80 1.52 0.01 1.92 12 3 11 13 5 Skywest 85.70 2.50 2.91 1.20 0.53 6 6 4 4 10 Spirit 77.40 2.70 2.27 0.15 11.71 13 5 9 9 1 Southwest 88.00 0.80 2.85 1.17 0.49 3 12 5 5 12 United 87.70 1.60 2.23 0.63 2.33 5 7 10 7 4 virgin America 84.30 1.40 0.74 0.09 1.92 9 8 13 11 5

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