1. PART II: Questions 9 and 10 below require you to select the best answer to fit the question
asked. 9. The mayor of a town believes that over 20% of the residents favor construction of a
new bridge. Is there sufficient evidence at the 0.10 level to support the mayor's claim? After
information is gathered from 230 voters and a hypothesis test is completed, the mayor fails to
reject the null hypothesis at the 0.10 level. What is the conclusion regarding the mayor's claim?
A) There is sufficient evidence at the 0.10 level of significance that the percentage of residents
who support the construction is over 20%. B) There is not sufficient evidence at the 0.10 level of
significance that the percentage of residents who support the construction is over 20%.
10. The mayor of a town believes that 27% of the residents favor construction of an adjoining
bridge. A community group believes this is inaccurate and decides to perform a hypothesis test to
dispute the mayor's claim. After information is gathered from 420 voters and a hypothesis test is
completed, the group decides to reject the null hypothesis at the 0.02 level. What is the
conclusion regarding the mayor's claim? A) There is sufficient evidence at the 0.02 level of
significance to say that the percentage of residents who support the construction is not 27%. B)
There is not sufficient evidence at the 0.02 level of significance to say that the percentage of
residents who support the construction is not 27%.