Answered: n 201 y 17.111 S 3.895 30 25 20 15 非 10…

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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Question

Arrivals 2011 Will your flight get you to your destina-
tion on time? The U.S. Bureau of Transportation

Statistics reported the percentage of flights that were
late each month from 1995 through September of
2011. Here’s a histogram, along with some summary
statistics:We can consider these data to be a representative sample
of all months. There is no evidence of a time trend
1r = 0.072.
a) Check the assumptions and conditions for inference
about the mean.b) Find a 99% confidence interval for the true percentage
of flights that arrive late.
c) Interpret this interval for a traveler planning to fly.

n 201
y 17.111
S 3.895
30
25
20
15
非
10
10
15
20
25
Late Arrival (%)
# of Months

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