Save See Tools
og ind Practice Senon-Dagate
app178 studystans. com/cates
tactice session/5537CAID=5a5356-10-05-31620 51HCTOCENE
Diagnostic Test
Auto Spot and Moto Zone both sell an engine additive. Each car company claims that the use of their product will cause a czto
get better gas mileage A mechanic decided to test each company's cam. He randomly selected 100 of his customers with
similar cars. He then gave 50 of the customers the additive from Auto Spot and he gave the remaining 50 customers the additive
from Moto Zone. The mechanic asked all the participants to record their gas mileage before and after using the stove
After several weeks of observation, the mechanic gathered all the results and found that each cartredited with Auto Spots
additive got, on average, ten miles per gallon better gas mileage He also found that each cartrected with Moto Zone's citive
got, on average, seven miles per gallon better gas mileage
Given the mechanics findings, what conclusion can be made regarding the engine additives from Auto Soot and Moto Zone?
's claim and Moto Zone's claim are both true, but Moto Zone has the more effective additive
more effective additive