Mathematics, 07.04.2020 15:28, SamaraP
Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You take a simple random sample of n = 30 hybrid vehicles and test their gas mileage. You find that in this sample, the average is 47 miles per gallon with a standard deviation of 5.5 miles per gallon. Is there enough evidence to support the advertised claim using α = 0.05? What is the null and alternative hypothesis for this problem?
Answers: 2
Mathematics, 21.06.2019 14:00, devontemiles1174
Will give brainliest if you answer question correct
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Mathematics, 21.06.2019 18:20, raylynnreece5052
If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)
Answers: 1
Mathematics, 21.06.2019 20:30, cheating53
Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?
Answers: 1
Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of...
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