Several yearsago, 47% of parents who had children in gradesK-12 were satisfied with the quality of education the students receive. A recent poll asked

1,145 parents who have children in gradesK-12 if they were satisfied with the quality of education the students receive. Of the 1,145 surveyed, 468 indicated that they were satisfied. Construct a 95% confidence interval to assess whether this represents evidence thatparents' attitudes toward the quality of education have changed.

What are the null and alternativehypotheses?

Upper H 0

(Round to two decimal places asneeded.)