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Several years ago, 43 % of parents who had children in grades K-12 were satisfied with the quality of education the students receive.

Hey, I need help solving this problem. 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 1,155 parents who have children in grades​ K-12 if they were satisfied with the quality of education the students receive. Of the 1,155 ​surveyed, 495 indicated that they were satisfied. How do I construct a 90​% confidence interval to assess whether this represents evidence that​ parents' attitudes toward the quality of education have changed.

Top Answer

clearly, 0.43 lies between... View the full answer

1 comment
  • What are the null and alternative hypotheses?
    • dermekoa
    • Aug 08, 2018 at 11:17am

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Other Answers

 0 . 4 0 5 ≤ p ≤ 0 . 4 5 3  Since  p = 0 . 4 3  lies... View the full answer

 C o n f i d e n c e I n t e... View the full answer

1 comment
  • What are the null and alternative hypotheses?
    • dermekoa
    • Aug 08, 2018 at 11:32am

The   90 ​%  confidence interval is (0.4046, 0.4526). Since,Population... View the full answer

The 90% confidence interval... View the full answer

3 comments
  • Please consider the hypothesises proportion p = 0.43 lies in the confidence interval, therefore we conclude that parents attitude towards quality education not changed.
    • ShivOjha
    • Aug 08, 2018 at 11:46am
  • So how do I determine the null and alternative hypotheses?
    • dermekoa
    • Aug 08, 2018 at 11:47am
  • The null hypothesis is "Parents satisfied with the quality education" and the Alternative hypothesis is "Parents do not satisfied with the quality education".
    • ShivOjha
    • Aug 08, 2018 at 11:58am

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