Several years ago, 41% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 468 of1,135 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 90% confidence interval to assesswhether this represents evidence that parents' attitudes toward the quality of education have changed.Click the icon to view the Confidence Interval Critical Value table.What are the null and alternative hypotheses?Ho: P 0.41 versus H₁ :p # 0.41(Type integers or decimals. Do not round.)Find the 90% confidence interval.=The lower bound isThe upper bound is(Round to three decimal places as needed.) Question 14, 10.2.23Part 2 of 3idence Interval Critical Valuestical ValuesConfidence Interval Critical ValuesLevel of Confidence0.90 or 90%0.95 or 95%0.98 or 98%0.99 or 99%PrintCritical Value, Zα/21.6451.962.332.575Done0

We have given that.Sample size (n) = 1135 x = 468 Confidence level (c) = 0.90 Significance level (α)…

Answered: Several years ago, 41% of parents with…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Several years ago, 38% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 454 of 1,205 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 90% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. E Click the icon to view the Confidence Interval Critical Value table. What are the null and alternative hypotheses? Ho:p = .38 versus H,: p + 38 (Type integers or decimals. Do not round.) Find the 90% confidence interval. The lower bound is | The upper bound is (Round to three decimal places as needed.)
Several years ago, 35% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,195 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,195 surveyed, 483 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. What are the null and alternative hypotheses? Ho: p versus H,: p (Round to two decimal places as needed.)
Several years ago, 45% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 495 of 1,125 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 99% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. Click the icon to view the Confidence Interval Critical Value table. What are the null and alternative hypotheses? Ho:P (Type integers or decimals. Do not round.) versus H: p Find the 99% confidence interval. The lower bound is The upper bound is (Round to three decimal places as needed.) What is the correct conclusion? O A. Since the interval does not contain the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed. B. Since the interval contains the proportion stated in the null…
Several years ago, 45% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 495 of 1,125 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 99% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. Click the icon to view the Confidence Interval Critical Value table. What are the null and alternative hypotheses? Ho: P # 3 versus H,: p (Type integers or decimals. Do not round.) %3D Find the 99% confidence interval. Confidence interval critical values The lower bound is 7 The upper bound is 7 (Round to three decimal places as needed.) Confidence Interval Critical Values Critical Value, Za/2 Level of Confidence What is the correct conclusion? 0.90 or 90% 1.645 0.95 or 95% 1.96 A. Since the interval does not contain the proportion stated in the 0.98 or 98% 2.33 hanged.…
Suppose the English department of a local university has a total of 105 faculty members. Of this number, 24 (about 23%) are part-time instructors. Is it appropriate to find a confidence interval for the percentage of part-time instructors in the department? Find a 95% confidence interval or explain why you should not find a confidence interval for the percentage of part-time instructors in the English department.
Several years ago, 46% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,135 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,135 surveyed, 474 indicated that they were satisfied. Construct a 90% 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? Ho: P versus H₁: p (Round to two decimal places as needed.) (…)
According to a poll, 81% of California adults (410 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California.What is a point estimate for the true population proportion?
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Several years ago, 45% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,025 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,025 surveyed, 484 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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Several years ago, 48% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 474 of 1,005 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 95% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. Click the icon to view the Confidence Interval Critical Value table. ..... What are the null and alternative hypotheses? Ho: p (Type integers or decimals. Do not round.) versus H1:p Find the 95% confidence interval. The lower bound is The upper bound is (Round to three decimal places as needed.) What is the correct conclusion? A. Since the interval does not contain the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have changed. B. Since the interval does not contain the proportion stated in…

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