Several years​ ago, 49​% 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, 497 indicated that they were satisfied. Construct a 99​% confidence interval to assess whether this represents evidence that​ parents' attitudes toward the quality of education have changed.
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Part 1
What are the null and alternative​ hypotheses?
Upper H 0​: p
equals

0.49 versus Upper H 1​: p
not equals

0.49
​(Type integers or decimals rounded to two decimal places as​ needed.)
Part 2
Use technology to find the 99​% confidence interval.
We are 99​% confident the proportion of parents who had children in grades​ K-12 that were satisfied with the quality of education the students receive is between

0.45 and

0.53.
​(Type integers or decimals rounded to two decimal places as​ needed.)