Question

Several years​ ago, 47​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive. A recent poll asked 1 comma 155 parents who have children in grades​ K-12 if they were satisfied with the quality of education the students receive. Of the 1 comma 155 ​surveyed, 491 indicated that they were satisfied. Construct a 95​% confidence interval to assess whether this represents evidence that​ parents' attitudes toward the quality of education have changed. What are the null and alternative​ hypotheses? Upper H 0​: p equals . 47 versus Upper H 1​: p not equals . 47 ​(Round to two decimal places as​ needed.) Use technology to find the 95​% confidence interval. The lower bound is ? The upper bound is ?

Answer 1