A courier service advertises that its average delivery time is more than 15 hours for local delivery. A random sample of times for 12 deliveries to an address across town was recorded. These data are shown here. Is this sufficient evidence to support the courier advertisement at the 1% level of significance.
A courier service advertises that its average delivery time is more than 15 hours for local delivery. A random sample of times for 12 deliveries to an address across town was recorded. These data are shown here. Is this sufficient evidence to support the courier advertisement at the 1% level of significance.
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
M3
Transcribed Image Text:A courier service advertises
that its average delivery time
is more than 15 hours for
local delivery. A random
sample of times for 12
deliveries to
an address
across town was recorded.
These data are shown here.
Is this sufficient evidence to
support
the
courier
advertisement at the 1%
level of significance.
15.03
16.33
16.5
15.22
16.56
16.76
16.46
17.98
18.82
17.96
14.54
15.09
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