Answered: Arrows A team of anthropologists headed…

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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Arrows A team of anthropologists headed by researcher

Nicole Waguespack studied the difference between stone-
tipped and wooden-tipped arrows. Stone arrow tips are

tougher, but also take longer to make. Many cultures used
both types of arrow tips, including the Apache in North
America and the Tiwi in Australia. The researchers set
up a compound bow with 60 lbs. of force. They shot
arrows of both types into a hide-covered ballistics gel.
(Waguespack, Nicole, et. al., Antiquity, 2009)a) Here are the data for seven shots at the target with a
wooden tip. They measured the penetration depth in
mm. Find and interpret a 95% confidence interval for
the penetration depth.
216 211 192 208 203 210 203
b) Here are the penetration depths (mm) for seven shots
with a stone tip. Find and interpret a 95% confidence
interval for the penetration depth.
240 208 213 225 232 214 240

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