Case Problem: Young Professional Magazine Young Professional magazine was developed for a target audience of recent college graduates who are in their first 10 years of a business or other professional career. The magazine has been fairly successt and the publisher is interested in expanding the publication's advertising base. As a recent hire into the marketing department at the magazine, you have been asked to help develop a survey asking reader demographic information and questions about their interests. Your survey results will be used to help the magazine choose articles of interest and provide advertisers with a profile of subscribers. The culmination of your work will be a presentation of your findings to management. Therefore, you not only have to present summary data, but must also be able to explain the results in a manner that is accurate and easy to understand. fter running your analysis, the software returns the following information about the age of the respondents: I Variable N St Dev SE Mean 4.0240 0.1987 Age Which statement should you use to explain the 95% confidence interval to management? O a. There is a 95% probability that the population mean age of all respondents lies within the interval 29.7215 to 30.5029. b. We are confident that 95% of our readers have ages between 29.7215 to 30.5029. X O c. We are 95% confident that the interval 29.7215 to 30.5029 includes the population mean age of all respondents. O d. We are 95% confident that the interval 29.7215 to 30.5029 includes the sample mean age of all respondents. Mean 410 30.1122 95% CI 29.7215 to 30.5029

A psychologist wanted to examine whether regular mindfulness practice would have an effect on the anxiety levels of her clients. She randomly assigned her clients into two groups. She asked the first group to meditate every day for 15 minutes for 6 months in addition to their regular counseling sessions. In the second group, she continued her regular counseling sessions without any extra treatment. Since the psychologist does not know how to run the analysis, your task is, by using your statistics skills, to inform her whether the mindfulness practice has made a difference in the lives of her clients and in what sense. To provide her with an answer, I want you to run two different tests: An Independent Samples t-test and a One-Way ANOVA, report their results, and compare the findings of these two analyses.

Last year over 7000 students took an entrance exam at a certain state university. Kareem's score was at the 44th percentile. Lella's score was at the 93rd percentile. (a) Which of the following must be true about Kareem's and Leila's scores? Both Kareem and Leila scored higher than the median. O Both Kareem and Lella scored below than the median. O Leila scored higher than Kareem. O Kareem scored higher than Leila. (b) Which of the following must be true about Kareem's score? O About 44% of the students who took the exam scored lower than Kareem. O Kareem got about 44% of the questions correct. O Kareem's score was in the top half of all scores. O Kareem missed 56 questions. Explanation Check X 3 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center

The following is not a graded test. It is just a homework practice problems.  Case Problem: Young Professional Magazine Young Professional magazine was developed for a target audience of recent college graduates who are in their first 10 years of a business or other professional career. The magazine has been fairly successful and the publisher is interested in expanding the publication’s advertising base. As a recent hire into the marketing department at the magazine, you have been asked to help develop a survey asking readers demographic information and questions about their interests. Your survey results will be used to help the magazine choose articles of interest and provide advertisers with a profile of subscribers. The culmination of your work will be a presentation of your findings to management. Therefore, you not only have to present summary data, but must also be able to explain the results in a manner that is accurate and easy to understand.   Based on…

Please teach me on how to solve this problem. C is wrong, maybe B, because it's talking about "sample ", and definitely "36students " are just samples, not population. Thanks so much.

Texting while driving has become a national focus now that cell phones are ubiquitous and texting while driving results in ever-increasing injuries and deaths. According to 2013 study, 44.5% of US Teenage drivers text while driving. You want to see how Gainesville teenage drivers compare to national teens. You randomly select 300 local high school students (ages 16-19) and ask if they have texted while driving within the past 30 days. The data is recorded in the table. Yes No 142 158 Find a 95% confidence interval for the percentage of teenage drivers who text while driving. Then explain what the confidence interval means in this context.

Why would one use the median instead of the mean?