Several yearsago, 34% of parents who had children in gradesK-12 were satisfied with the quality of education the students receive. A recent poll asked 1,185 parents who have children in gradesK-12 if they were satisfied with the quality of education the students receive. Of the 1,185 surveyed, 471 indicated that they were satisfied. Construct a 99% confidence interval to assess whether this represents evidence thatparents' attitudes toward the quality of education have changed.

Use technology to find the 99% confidence interval.

a) The lower bound is ?

b) The upper bound is ?