MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Table 1 gives flight arrival numbers from a random sample of flights for two airlines.
Table 1 Arrival times for two airlines
Test whether there is a difference between the two airlines in the percent of flights that arrive late.
Early | On-time | Late | Total | |
---|---|---|---|---|
Airline 1 | 133 | 416 | 153 | 702 |
Airline 2 | 58 | 354 | 87 | 499 |
Total | 191 | 770 | 240 | 1201 |
Table 1 Arrival times for two airlines
Test whether there is a difference between the two airlines in the percent of flights that arrive late.
(a) Find the relevant sample proportions in each group and the pooled proportion.
Round your answers to three decimal places, if necessary.
p^1= Enter your answer in accordance to item (a) of the question statement
p^2= Enter your answer in accordance to item (a) of the question statement
p^= Enter your answer in accordance to item (a) of the question statement
(b) State the null and alternative hypotheses. Your answer should be an expression composed of symbols: =,≠,<,>,μ,μ1,μ2,p,p1,p2,ρ,p^,p^1,p^2,r.
(c) Give the test statistic and the p-value.
Round your answer for the test statistic to two decimal places and your answer for the p-value to three decimal places.
test statistic =
p-value =
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