Several years ago, 33% of parents who had children in grades K-12 were satisfied with the quality of education thestudents receive. A recent poll asked 1,195 parents who have children in grades K-12 if they were satisfied with thequality of education the students receive. Of the 1,195 surveyed, 457 indicated that they were satisfied. Construct a90% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality ofeducation have changed.What are the null and alternative hypotheses?Ho: P0.33 versus H₁: p = 0.33(Type integers or decimals rounded to two decimal places as needed.)Use technology to find the 90% confidence interval.We are 90% confident the proportion of parents who had children in grades K-12 that were satisfied with the quality ofeducation the students receive is betweenand(Type integers or decimals rounded to two decimal places as needed.)

The formula for the confidence interval for the proportion is, Here, confidence level is 0.90. Use…

Answered: Several years ago, 33% of parents who…

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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In a survey of 3332 adults aged 57 through 85 years, it was found that 80.7% of them used at least one prescription medication. a. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.
Several years ago, 44% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,095 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,095 surveyed, 471 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. (... The lower bound is 4 The upper bound is (Round to two decimal places as needed.) Help me solve this Get more help. Check answer #H Type here to search A $ 1:09 PM 6/18/2022 * S E $ R F View an example 5 T G B O#O U J 8 M 1 hp K $ a 9 O P → E Clear all prt se 1 94°F Mostly sunny num 7
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Several years ago, 33% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,125 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,125 surveyed, 451 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 H₁: p (Round to two decimal places as needed.)
Angela is trying to figure out the sample size for the data set she wants to collect. She is considering using a 90% or a 99% confidence level. Explain to Angela the impact the different levels will have on her sample size.
Several years ago, 42% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,185 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,185 surveyed, 499 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. find the 90% confidence interval. The lower Bound ___ The Upper Bound___
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 1,075 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,075 surveyed, 466 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 H4: p (Round to two decimal places as needed.)
Several years ago, 48% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,035 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,035 surveyed, 497 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? HP versus H₁: p (Round to two decimal places as needed.) Use technology to find the 90% confidence interval. The lower bound is The upper bound is (Round to two decimal places as needed.) What is the correct conclusion? OA. Since the interval contains the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed. OB. Since the interval does not contain the proportion stated in the…
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In a survey of 3116 adults aged 57 through 85 years, it was found that 86.2% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3116 subjects used at least one prescription medication? b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. c. What do the results tell us about the proportion of college students who use at least one prescription medication? A. The results tell us that there is a 90% probability that the true proportion of college students who use at least one prescription medication is in the interval found in part (b). B. The results tell us that, with 90% confidence, the probability that a college student uses at least one prescription medication is in the interval found in part (b). C. The results tell us that, with 90% confidence, the true proportion of college students who use at…

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