The data given to the right includes data from 41 candies, and 8 of them are red.The company that makes the candy claims that 29% of its candies are red. Usethe sample data to construct a 90% confidence interval estimate of thepercentage of red candies. What do you conclude about the claim of 29%?Weights (g) of a Sample Bag of CandyRedBlue0.928Brown0.8130.795GreenYellow0.9050.8110.7230.9180.9290.8010.9480.9130.9420.7290.777Construct a 90% confidence interval estimat of the population percentage ofcandies that are red.0.7950.7460.8220.7030.8150.7580.9440.9390.8330.7720.8370.9560.703%

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Answered: The data given to the right includes…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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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…
A College Alcohol Study interviewed an SRS of 1000 college students about their drinking habits. Suppose that half of all college students "drink to get drunk" at least once in a while. That is sample proportion, p-hat 0.5. %3D 9. Estimate a 95% confidence interval for the actual percentage among all students. Round the number to nearest hundredth. O47% to 53% O 50% to 55% 43% to 52% O 44% to 56%
#34).
In a survey of 3213 adults aged 57 through 85 years, it was found that 83.9% of them used at least one prescription medication. Complete parts (a) through (c) below. a. how many of the 3213 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?
. The data given to the right includes data from 39 candies, and 5 of them are red. The company that makes the candy claims that 32% of its candies are red. Use the sample data Weights (g) of a Sample Bag of Candy Red Blue Brown Green Yellow 0.858 0.758 0.917 0.746 0.917 to construct a 90% confidence interval estimate of the 0.929 0.789 0.824 0.962 0.939 percentage of red candies. What do you conclude about the 0.892 0.734 0.712 0.968 0.716 claim of 32%? 0.972 0.843 0.858 0.934 0.843 0.948 0.957 0.919 0.971 0.741 Construct a 90% confidence interval estimate of the 0.868 0.943 0.945 0.762 population percentage of candies that are red. 0.936 0.706 0.898 0.811 0.705 0.772 0.899 %
The dean of students at a large college is interested in learning about their opinions regarding the percentage of first-year students who should be given parking privileges in the main lot. He sends out an email survey to all students about this issue. A large number of first-year students reply but very few sophomores, juniors, and seniors reply. Based on the responses he receives, he constructs a 90% confidence interval for the true proportion of students who believe first-year students should be given parking privileges in the main lot to be (0.71, 0.79). Which of the following may have an impact on the confidence interval, but is not accounted for by the margin of error? response bias O nonresponse bias O sampling variation O undercoverage bias
A genetic experiment with peas resulted in one sample of offspring that consisted of 425 green peas in a 162 yellow peas. a. Construct a 95% confidence interval to estimate of the percentage of yellow peas. b. it was expected at 25% of the offspring peas would be yellow. Given the percentage of offspring yellow peas is not 25%, do the results contradict expectations?
Suppose we wish to estimate the average number of hours per week that Americans watch TV. Use the following data from an SRS to find a 90% confidence interval: 30 64 49 40 21 58 9 43 39 43
An insurance company collects data on seat-belt use among drivers in a country. Of 1500 drivers 30-39 years old, 33% said that they buckle up, whereas 458 of 1800 drivers 55-64 years old said that they did. Find a 95% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 30-39 years and 55-64 years. ..... Construct a 95% confidence interval. The 95% confidence interval for p, - p2 is from to (Round to three decimal places as needed.)
A survey collected data on attitudes toward the quality of customer service in retail stores. The survey found that 270 of the 750 American adults sampled felt that customer service is better today than it was two years ago. We wish to develop a 94% confidence interval for the proportion of American adults who feel customer service is better today than it was two years ago. What is the population? A) the 750 American adults sampled B) customer service representatives C) all American adults
A genetic experiment with peas resulted in one sample of offspring that consisted of 448 green peas and 171 yellow peas. a. Construct a 95% confidence interval to estimate of the percentage of yellow peas. b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations? Express the percentages in decimal form.

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