Recently airlines cut services, such as meals, and snacks during flights, and started charging for checked luggage. We interview randomly selected passengers from 4 different airlines and for each interview we get a satisfaction score ranging from 0 to 100 points. Airline 1 Airline 2 Airline 3 Airline 4 Is there a difference in the mean satisfaction level among the four airlines? 94 75 70 68 If appropriate, determine which airlines differ in mean satisfaction scores. 90 68 73 70 85 77 76 72 Use a significane level of 0.01. 80 83 78 65 88 80 74 68 65 65
Recently airlines cut services, such as meals, and snacks during flights, and started charging for checked luggage. We interview randomly selected passengers from 4 different airlines and for each interview we get a satisfaction score ranging from 0 to 100 points. Airline 1 Airline 2 Airline 3 Airline 4 Is there a difference in the mean satisfaction level among the four airlines? 94 75 70 68 If appropriate, determine which airlines differ in mean satisfaction scores. 90 68 73 70 85 77 76 72 Use a significane level of 0.01. 80 83 78 65 88 80 74 68 65 65
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Please answer the questions below, data included:
- Recently airlines cut services, such as meals, and snacks during flights, and started charging for checked luggage. We interview randomly selected passengers from 4 different airlines A1-A4 and for each interview we get a satisfaction scored (0 -100 points).
Is there a difference in the mean satisfaction level among the four airlines? Use the 0.01 significance level and the data on spreadsheet WS-Airlines.
- Hypotheses to be tested:
- Test Statistic:
- p-value =
- Conclusion:
Transcribed Image Text:Recently airlines cut services, such as meals, and snacks during flights, and started charging
for checked luggage. We interview randomly selected passengers from 4 different airlines and for
each interview we get a satisfaction score ranging from 0 to 100 points.
Airline 1
Airline 2
Airline 3
Airline 4
Is there a difference in the mean satisfaction level among the four airlines?
94
75
70
68
If appropriate, determine which airlines differ in mean satisfaction scores.
90
68
73
70
85
77
76
72
Use a significane level of 0.01.
80
83
78
65
88
80
74
68
65
65
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