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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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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