Airlines On-Time Arrivals The percentages of on-time arrivals for major U.S. airlines range from 68.6 to 91.1. Two regional airlines were surveyed with the following results. At =α0.05, is there a difference in proportions? Airline A Airline B Number of flights 276 302 Number of on-time flights 215

Airlines On-Time Arrivals The percentages of on-time arrivals for major U.S. airlines range from 68.6 to 91.1. Two regional airlines were surveyed with the following results. At =α0.05, is there a difference in proportions? Airline A Airline B Number of flights 276 302 Number of on-time flights 215

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

Airlines On-Time Arrivals The percentages of on-time arrivals for major U.S. airlines range from 68.6 to 91.1. Two regional airlines were surveyed with the following results. At =α0.05, is there a difference in proportions?

	Airline A	Airline B
Number of flights	276	302
Number of on-time flights	215	212

Use p1 for the proportion of on-time arrivals for airline A and round all intermediate calculations to at least three decimal places.

State the hypotheses and identify the claim with the correct hypothesis.

H0: Claim or not a claim

H1: Claim or not a claim

This Hypothesis test is a one-tailed or two-tailed

Find the Critical Value(s): Round the answer to at least two decimal places. Critical Value(s)=

Compute the test value: Round to 2 decimal places. z =

Make the decision Reject or Accept

Summarize the results.

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