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This question was created from BA 6090 - Homework #4.pdf https://www.coursehero.com/file/52205245/BA-6090-Homework-4pdf/

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1. A local bike shop in Michigan decided to perform an experiment to investigate the average mileage
for four popular brands of mountain bike tires: the Michelin WildRACE'R, the Maxxis Rekon Race, the
Kenda Slant Six, and the Schwalbe Racing Ralph.
The bike shop recruited 80 avid riders and randomly assigned them to use one of the brands of tires.
They split the riders evenly so that 20 rode with each brand. The riders used the Strava app to record
the number of miles they rode, and checked in with the shop regularly to have their tires inspected. The
shop recorded the total mileage when the tires wore out.
a) In this experiment, what is the factor?
b) What are the treatments?
c) What is the response variable?
d) How many treatment groups are there in this experiment?
e) Can this experiment prove cause and effect? How do you know?

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