An automobile manufacturer decides to carry out a fuel efficiency test to determine if it can advertise
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27.2 29.3 31.2 28.4 30.3 29.6
Assuming that fuel efficiency is normally distributed, do these data provide evidence against the claim that actual mean fuel efficiency for this model is (at least) 30 mpg?
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Using the fivestep process HMC 3 Hypotheses H We want to know if the sample data provide convincing ...View the full answer
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