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Table 1 gives flight arrival numbers from a random sample of flights for two airlines. P₁ P₂ = i = Airline 1 i Airline 2 P = i Total Early 133 58 191 On- time 416 354 770 (a) Find the relevant sample proportions in each group and the pooled proportion. Round your answers to three decimal places, if necessary. Late 150 87 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. 237 Total 699 499 1198

Table 1 gives flight arrival numbers from a random sample of flights for two airlines. P₁ P₂ = i = Airline 1 i Airline 2 P = i Total Early 133 58 191 On- time 416 354 770 (a) Find the relevant sample proportions in each group and the pooled proportion. Round your answers to three decimal places, if necessary. Late 150 87 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. 237 Total 699 499 1198

MATLAB: An Introduction with Applications
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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Please answer the questions carefully to get the correct answers by using the table of flights.

(b) State the null and alternative hypotheses. Ho: == + 14. eTextbook and Media test statistic = i p-value = i What is the conclusion? :: μ ¦ vs Ha:¦ ✓ Ho at a 5 % level. I2 Ho at a 10 % level. 41 p μ₂ :: p P₁ :: P₁ A P₂ :: P₂ ⠀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. T ::p H 18 :: T₁
Transcribed Image Text:(b) State the null and alternative hypotheses. Ho: == + 14. eTextbook and Media test statistic = i p-value = i What is the conclusion? :: μ ¦ vs Ha:¦ ✓ Ho at a 5 % level. I2 Ho at a 10 % level. 41 p μ₂ :: p P₁ :: P₁ A P₂ :: P₂ ⠀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. T ::p H 18 :: T₁
Table 1 gives flight arrival numbers from a random sample of flights for two airlines. P₁ = P₂ P= i = i = Airline 1 Airline 2 i Total Early 133 58 191 On- time 416 354 (a) Find the relevant sample proportions in each group and the pooled proportion. Round your answers to three decimal places, if necessary. 770 Late 150 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. 87 237 Total 699 499 1198
Transcribed Image Text:Table 1 gives flight arrival numbers from a random sample of flights for two airlines. P₁ = P₂ P= i = i = Airline 1 Airline 2 i Total Early 133 58 191 On- time 416 354 (a) Find the relevant sample proportions in each group and the pooled proportion. Round your answers to three decimal places, if necessary. 770 Late 150 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. 87 237 Total 699 499 1198
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