According to a poll, 670 out of 1030 randomly selected smokers polled believed they are discriminated against in public life or in employment beçause of their smoking a. What percentage of the smokers polled believed they are discriminated against because of their smoking? b. Check the conditions to determine whether the CLT can be used to find a confidence interval. c. Find a 95% confidence interval for the population proportion of smokers who believe they are discriminated against because of their smoking

According to a poll, 670 out of 1030 randomly selected smokers polled believed they are discriminated against in public life or in employment beçause of their smoking a. What percentage of the smokers polled believed they are discriminated against because of their smoking? b. Check the conditions to determine whether the CLT can be used to find a confidence interval. c. Find a 95% confidence interval for the population proportion of smokers who believe they are discriminated against because of their smoking

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Description: MaDizibleGmailAmazon.comFACEBOOK.C..Add shortcutesci CustomizeAccording to a poll, 670 out of 1030 randomly selected smokers polled believed they are discriminated against in public life or in employment beçause of their smoking.a. What percentage o

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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Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 90% confidence level. What does the confidence interval tell about the population of all college students in the state? 3.6, 2.8, 4.0, 4.7, 2.8, 4.4, 3.2, 4.4, 4.2, 4.4, 4.0, 3.6, 3.4, 4.1, 3.9 D What is the confidence interval for the population mean u? O<µ
Use the given degree of confidence and sample data to construct a confidence interval for the population proportion. Of 786 items tested, 10 are found to be defective. Construct a 98% confidence interval for the percentage of all such items that are defective. O A. (0.93%, 6.00%) O B. (3.18%, 5.18%) OC. (0.34%, 1.34%) O D. (0.34%, 2.20%) O E. (3.34%, 3.59%)
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 90%confidence level. What does the confidence interval tell about the population of all college students in the state? 4.0, 2.9, 4.2, 4.9, 2.9, 4.0��, 3.4, 4.7, 4.4, 4.1, 4.0, 3.8, 3.3, 4.3, 4.0 what is the confidence interval for the population mean u?
A statistics instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and weighed the bags. They weighed 10.3, 10.8, 10.4, and 10.6 pounds. Assume that the distribution of weights is Normal. Find a 95% confidence interval for the mean weight of all bags of oranges. Use technology for your calculations. Answer parts a and b below. a. Choose the correct interpretation of the confidence interval below and, if necessary, fill in the answer boxes to complete your choice. A. We are 95% confident the population mean is between and B. There is a 95% chance that all intervals will be between and C. We are 95% confident that the sample mean is between and D. The requirements for constructing a confidence interval are not satisfied. (Type integers or decimals rounded to the nearest thousandth as needed. Use ascending order.)
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 98%confidence level. What does the confidence interval tell about the population of all college students in the state? 3.5, 2.8, 3.9, 4.6, 2.8, 4.0, 3.2, 4.7, 4.2, 4.0, 4.3, 3.7 3.4, 3.9, 3.7
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 95% confidence level. What does the confidence interval tell about the population of all college students in the state? 4.0, 2.9, 3.8, 4.9, 3.1, 4.1, 3.4, 4.4, 4.3, 4.5, 4.6, 3.7, 3.4, 4.0, 4.0 What is the confidence interval for the population mean μ? _____<μ<_____ (Round to two decimal places as needed.) What does the confidence interval tell about the population of all college students in the state? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. A.We are confident that 95% of all students gave evaluation ratings between _____ and ______. (Round to one decimal place as needed.) B.We are 95% confident that the interval from _____ to ______ actually contains the true mean…
Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and find the proportion of presidents who were taller than their opponents. Use that result to construct a 95% confidence interval estimate of the population percentage. Based on the result, does it appear that greater height is an advantage for presidential candidates? Why or why not? Construct a 95% confidence interval estimate of the percentage of presidents who were taller than their opponents. If greater height was an advantage, then taller candidates should have won (more than,less than,exactly) 50% of the elections. In this case, greater height (appears,does not appear) to be an advantage for presidential candidates because the confidence interval (does,does not) include 50%.
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 99% confidence level. What does the confidence interval tell about the population of all college students in the state? 4.0, 3.0, 4.0, 4.5, 3.1, 4.2, 3.4, 4.5, 4.6, 4.4, 4.1, 3.9, 3.5, 4.0, 3.9 What is the confidence interval for the population mean µ? (Round to two decimal places as needed.) What does the confidence interval tell about the population of all college students in the state? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA. The results tell nothing about the population of all college students in the state, since the sample is from only one university. B. We are confident that 99% of all students gave evaluation ratings between and (Round to one decimal place as needed.) OC. We are 99% confident that the interval from (Round to…
TV advertising agencies face increasing challenges in reaching audience members because viewing TV programs via digital streaming is gaining in popularity. A poll reported that 80% of 2367 American adults surveyed said they have watched digitally streamed TV programming on some type of device. a. Calculate and interpret a confidence interval at the 95% confidence level for the proportion of all adult Americans who watched streamed programming up to that point in time. )
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 90% confidence level. What does the confidence interval tell about the population of all college students in the state? 4.0, 3.1, 4.0, 4.8, 3.1, 3.9, 3.6, 4.9, 4.2, 4.1, 4.4, 3.6, 3.2, 4.1, 3.7 O What is the confidence interval for the population mean p? <µ< (Round to two decimal places as needed.)
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 98% confidence level. What does the confidence interval tell about the population of all college students in the state? 4.1, 2.9, 3.8, 4.7, 2.9, 4.4, 3.6, 4.5, 4.5, 4.0, 4.4, 3.6, 3.5, 4.13.6 D What is the confidence interval for the population mean u? (Round to two decimal places as needed.)
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 95% confidence level. What does the confidence interval tell about the population of all college students in the state? 4.0, 3.1, 3.9, 4.8, 3.2, 4.1, 3.8, 4.3, 4.2, 4.0, 4.3, 3.8, 3.6, 4.0, 4.0 D What is the confidence interval for the population mean µ? |<µ< (Round to two decimal places as needed.)