If several years? ago, 43?% of parents who had children in grades? K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,085 parents who have children in grades? K-12 if they were satisfied with the quality of education the students receive. Of the 1,085 surveyed, 484 indicated that they were satisfied.
How do I construct a 99?% confidence interval to assess whether this represents evidence that? parents' attitudes toward the quality of education have changed and how to I would I show what the null and alternative hypotheses?