More Information From the Online Dating SurveyA survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either anonline dating site or a dating app on their cell phone).55- to 64-year-oldsThe survey included 411 adults between the ages of 55 and 64, and 50 of them said that they had used online dating. If we use thissample to estimate the proportion of all American adults ages 55 to 64 to use online dating, the standard error is 0.016. Find a 99%confidence interval for the proportion of all US adults ages 55 to 64 to use online dating.Round your answers to three decimal places.The 99% confidence interval is ito

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Answered: More Information From the Online Dating…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A Statistics teacher wants to know if students exposed to the use of technology in the classroom got significantly higher scores in Statistics exam than those who are exposed to the traditional chalk and talk method. She took a sample of 30 students exposed to technology and recorded their Statistics exam scores: 95 88 81 98 81 80 83 80 91 80 75 83 88 85 81 85 83 86 89 88 90 89 88 85 87 86 66 85 65 95She then took a sample of 40 students who were taught using the traditional method 88 78 81 87 91 90 83 84 66 81 80 74 73 71 66 60 78 78 65 60 71 85 89 79 80 83 75 73 80 71 65 71 89 81 75 60 82 80 90 83 Help the teacher verify the hypothesis at α = 0.05.
Please help answering this one:
By a small margin, Facebook remains the top choice of social media over all ages, with 29% using Facebook most often among those using social media sites. However, more visually oriented social networks such as Snapchat and Instagram continue to draw in younger audiences. When asked "Which one social networking brand do you use most often?" the results in the table show the top brands chosen by Americans aged 12-34 who currently use any social networking site or service. Social M edia Site Faceboo k Snapchat Instagra m Twitter Percentage That Use Most Often 29 28 26 6 20 (a) What is the sum of the percentages for these top social media sites? Give your answer as an exact number. Macmillan Learning top social media sites: What percent of Americans aged 12-34 use other social media sites most often? Give your answer as an exact number. other social media sites: do %
sixty-five percent of those surveyed reply No to a certain question. If 234 reply No, what is the sample size?
please answer blank questions only and or ones with a red x next to them.
A newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of 1,800 recruiters and human resource professionals. The infographic indicated that 51% of the people surveyed had reconsidered a job candidate based on his or her social media profile. Assume that the sample is representative of the population of recruiters and human resource professionals in the United States.Use the given information to estimate the proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile using a 95% confidence interval. (Use a table or technology. Round your answers to three decimal places.)
Please see picture. Need this asap please and thank you.
Determine whether the underlined number is a statistic or a parameter. in a study of all 4622 professors at a college, it is found that 40% own a television.
To collect data about the number of students in your high school who have a part time job, which of the following methods is most likely to lead to a sample that is the most representative of the students in your school? Interview all the girls in the school. Ask the principal. Interview all the students in 9th grade. Assign each student in the school a number and randomly select students to be interviewed. Interview all the students who are on the sports teams in the school.
Determine whether the following is an observational study or an experiment and identify the type of data that was collected as qualitative or quantitative. Explain your reasoning a. Researchers wanted to know the proportion of Americans that have been vaccinated against the flu. They asked a random sample of people if they had received the flu shot and recorded their response.
The Institute of Education Sciences measures the high school dropout rate as the percentage of 16- through 24-year-olds who are not enrolled in school and have not earned a high school credential. In 2009, the high school dropout rate was 8.1%. A polling company recently took a survey of 1000 people between the ages of 16 and 24 and found 6.5% of them are high school dropouts. The polling company would like to determine whether the dropout rate has decreased at a 5% significance level. reject HO we can conclude that the high school dropout rate has decreased reject HO we cannot conclude that the high school dropout rate has decreased do not reject HỒ we cannot conclude that the high school dropout rate has decreased do not reject HỒ we can conclude that the high school dropout rate has decreased

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