Question 5 (1 point)

Saved

CAFE laws regulate the miles-per-gallon number of light-duty vehicles, that is, sedans, minivans, Ford F-150s, and anything else that's street-legal and weighs less than 10,000 pounds. The rules work mostly by getting a little more stringent every year. In 2018, cafe required new vehicles to average about 29 miles per gallon (or mpg). For 2019 the standard was 29.2. For this series of questions, we will evaluate whether all vehicles makers as a whole exceeded this standard on average for Highway MPG (gasoline, diesel).

First, what is your dependent variable?

Question 5 options:

	None of the other choices
	There is no dependent variable
	Highway MPG (gasoline, diesel)
	CAFE standard 29 MPG

Hide hint for Question 5
Here we are examining the "influence" of a standard on the results, how the standards are being met. Independent = the variable that is external, and dependent = the variable that is being influenced.

Question 6 (2 points)

What are the Null and Alternative Hypotheses for this analysis?

Question 6 options:

	H(o): Highway MPG (gasoline, diesel) >= 29; H(a): Highway MPG (gasoline, diesel) < 29
	H(o): Highway MPG (gasoline, diesel) <= 29; H(a): Highway MPG (gasoline, diesel) > 29
	H(o): Highway MPG (gasoline, diesel) <> 29; H(a): Highway MPG (gasoline, diesel) = 29 [<> is a way of saying is not equal]
	H(o): Highway MPG (gasoline, diesel) = 29; H(a): Highway MPG (gasoline, diesel) <> 29 [<> is a way of saying is not equal]

Hide hint for Question 6
Make sure that the thing you want to find out is in the alternative hypotheses. Here we want to find out if the MPG is greater than the standard.

Question 7 (2 points)

Is your dependent variable continuous, ordinal, or nominal?

Question 7 options:

	continuous
	nominal
	ordinal
	None of the other choices