A magazine article conducted a survey of 878 people in New York City and found that 35% of the population believe that the Yankees will miss the playoffs this year. In the accompanying dialogue, the article states, we are 91% confident that the true proportion of people in New York City whobelieve that the Yankees will miss the playoffs this year lies between 32% and 38%. What does 91% represent in the article?O A. a statisticO B. a confidence intervalOC. a parameterO D. a confidence levelO E. a margin of error

We are 91% confident about the given statement. This is the level of our confidence.

Answered: believe that the Yankees will miss the…

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, 30 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $47 and standard deviation of $6. Construct a confidence interval at a 80% confidence level. Give your answers to one decimal place. H
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You are interested in finding a 90% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 12 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 7 26 5 10 23 14 14 8 19 6 8 12 a. To compute the confidence interval use a ? z or t distribution. b. With 90% confidence the population mean number of visits per physical therapy patient is between __and ___visits. c. If many groups of 12 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About __percent of these confidence intervals will contain the true population mean number of visits per patient and about __percent will not contain the true population mean number of visits per patient.
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believe that the Yankees will miss the playoffs this year lies between 32% and 38%. What does 91% represent in the article? A. a statistic OB. a confidence interval OC. a parameter OD. a confidence level O E. a margin of error