Highway safety engineers setup a test course that included both the old and the new signs. Volunteers drove the test course and rated the old and new signs in terms of visibility.
1. Write the null and alternative hypotheses "in words" using "improved visibility" and "not improved visibility".

2. Using the hypotheses, write what would constitute a TYPE I error in the context of the problem.

3. What would be the consequence of the TYPE I error?

4. What would be a TYPE II error in the context of the problem?

5. What would be the consequence of the TYPE II error?

Answer rating: 100% (QA)

1 H 0 There is improved visibility H 1 There is no improv... View the full answer