A auto shop wants to examine the proportion of customers that have to returnafter an appointment. Last year, an examination of 264 customers found that30.1% had to return after an appointment. You instituted some changes at theauto shop this year, and found from a sample of 326 customers that 22.4% hadto return after an appointment. You want to conduct an analysis to determine ifthere has been an increase in the proportion of customers that need to returnafter an appointment since the past year, with a = 0. 10. Using thisinformation, what is the critical value of your analysis? Round your final answerto two decimal places.2.111.962.331.281.64

Answered: Image /qna-images/answer/bef27f2d-83ad-4fad-8543-3714d34303de.jpg

Answered: A auto shop wants to examine 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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several years ago, the Gallup Organization conducted a random survey of 1018 adults aged 18 or older living in the United States and asked if you had $1000 to spend. Do you think investing it in the stock market would be a good idea? The Gallup study concluded that 54% of those surveyed said they thought investing in the stock. Market was a good idea. A statician would like to take a random sample of 200 of those 1018 adults and ask them the same question again to see if people change their minds over time. Based on the Gallup survey a statician specs that 54% of their sample will say that investing $1000 in the stock market would be a good idea give or take 2.1% find the chance as a percentage that institutions random sample 51% or more of them would say that investing $1000 in the stock market is a good idea write your answer as a percentage.
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