Suppose a researcher is interested in whether Iowa drivers s…
Suppose a researcher is interested in whether Iowa drivers support stricter penalties for drunk driving. A random sample of 400 Iowa drivers was polled and asked their opinions using a 5-point scale of -2 to 2 { -2 , -1 , 0 , 1 , 2 }. Negative values mean opposition to stricter penalties, and positive values mean support of stricter penalties. Which of the following would be a suitable null hypothesis?
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