The figure to the right shows the results of a survey in which 1025 adults from Country A, 1002 adults from Country B, 1000 adults from Next questionfrom Country D, and 1022 adults from Country E were asked whether national identity is strongly tied to birthplace.ultsNational Identity and BirthplacePeople from different countries who believe nationalidentity is strongly tied to birthplaceCountry A38%Country B19%Country C28%Country D45%Country E13%Construct a 95% confidence interval for the population proportion of adults who say national identity is strongly tied to birthplace for each country listed.The 95% confidence interval for the proportion of adults from Country A who say national identity is strongly tied to birthplace is ( A D(Round to three decimal places as needed.)Clear allChecView an exampleGet more help -Help me solve thisMacBook Air10业F780F6F4F3F2esc&23$%8@45123Yつ

Confidence interval provide the interval where the true parameter lies in it. It is calculated by…

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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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A survey was conducted to determine whether adult participation in physical fitness programs varies from one region of the United States to another. A random sample of people were interviewed and the state in which they lived along with their participation status was recorded. Rhode Island Colorado California Florida Participate 47 65 110 122 Do Not Participate 151 179 194 181 Do the data indicate a difference in adult participation in physical fitness programs from one state to another? Test using a = 0.01. State the null and alternative hypotheses. Ho: Participation in physical fitness programs and state are independent. H: Participation in physical fitness programs and state are dependent. Но: : The number of people who do and do not participate in physical fitness programs are equal. H: The number of people who do and do not participate in physical fitness programs are not equal. Ho: Participation in physical fitness programs and state are linearly related. H: Participation in…
Could you also construct a 95% confidence interval estimate for the population proportion of travellers who said that reputation was very important for choosing an airline.
Ten students on a low-fat diet designed to lower their cholesterol and recorded their before and after diet data in the following table: Before diet cholesterol level: After diet cholesterol level: 140 140 220 230 110 120 240 220 200 190 180 150 190 200 360 300 280 300 260 240 Based on a 95% confidence level, after hypothesis testing, what would you tell the students about the diet? 2. Which test will you use to test for this statistical analysis?
Use the information to construct 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. Researchers surveyed a random sample of 32 U.S. workers ages 16 years and over who did not work from home and asked how long (in minutes) it takes them to get from home to work. The responses are listed. 44 18 27 47 37 48 27 27 24 39 16 44 18 35 26 39 33 15 71 14 11 53 30 54 30 74 41 26 20 45 34 25 59 85 From past studies, the researchers assume that o is 17.9 minutes. Construct the 90% and 99% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals. The 90% confidence interval is ( ). (Round to one decimal place as needed.)
A professor wants to know which type of instructional mode students had more satisfaction. The professor randomly selected n = 5 students from each of the following types of classes: online only, hybrid, and face-to face only. Student were given a satisfaction survey. Are their differences in student satisfaction among the different instructional modes. The data are below: Online Hybrid Face-to-Face 3 3 4 3 3 1 3 1 3 2 2 2 2 1 3 Which of the following is the appropriate statistical conclusion? According to the ANOVA, there was an overall significant difference among the three instructional modes. However, there was not a significant differcene between any two instructional modes using the Tukey's post hoc test. According to the ANOVA, there was an overall significant difference among the three instructional modes. There was were significant differcene between all two pairs of instructional modes using the Tukey's post hoc test. According…
The table below summarizes data from a survey of a sample of women. Using a 0.01 significance level, and assuming that the sample sizes of 800 men and 300 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Gender of Interviewer Man Woman Women who agree Women who disagree 556 250 244 50 Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. Choose the correct answer below. Ho: The proportions of agree/disagree responses are the same for the subjects interviewed by men and the subjects interviewed by women. : The proportions are different. Hi: O B. Ho: The proportions of agree/disagree responses are different for the subjects interviewed by men and the subjects interviewed by women. H1: : The proportions are the same. Ho: The response of the…
Conduct a statistical test at a significance level of 0.05 to determine if there is an association between gender and movie preference. The chart of observed counts has been re-copied here for convenience. Action Drama Animated Total Comedy 20 Male 52 32 16 120 Female 24 32 16 8 80 Total 76 64 36 24 200 Answer in the blanks to show the work associated with exploring this claim. Blank #1: The statistical test to determine whether there is an association between two categorical variables is the Loverall relationship test. Blank #2: Compute the expected count of Females who prefer comedy. Report your answer with one decimal place. The test was conducted and the following test statistic and p-value calculated as shown in the calculator screenshot. Fill in the remaining blanks to show the test in its entirety. X2-Test X2=5.653021442 P=.1297673797 df=3
A researcher is interested in investigating whether religious affiliation and the brand of sneakers that people wear are associated. The table below shows the results of a survey. Frequencies of Religions and Sneakers Nike Adidas Other Protestant 82 87 108 Catholic 63 58 98 Jewish 21 17 23 Other 76 87 82 What can be concluded at the a = 0.10 significance level?
A social scientist wanted to study the education levels of adults who live in the tristate area of southwestern Pennsylvania, the West Virginia panhandle, and southeastern Ohio. A random sample of 25 middle-aged adults from each region was selected and asked about their highest level of education. The responses are displayed in the table. The scientist would like to know if these data provide convincing evidence that the distribution of education differs for these regions in the population of all tristate residents. Are the conditions for inference met? No, the random condition is not met. No, the 10% condition is not met. No, the Large Counts condition is not met. Yes, all three conditions for inference are met.
I need part d
A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?
Construct the Confidence Interval for the proportion.In a survey of 2480 golfers, 372 said they were left-handed. Construct a 92% confidence interval for the proportion of left-handed golfers from this sample.

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