the trade magazine qsr routinely checks the drive-through service times of fast-food restaurants. % confidence interval that re

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the trade magazine qsr routinely checks the drive-through service times of fast-food restaurants. % confidence interval that results from examining customers in taco bell’s drive-through has a lower bound of seconds and an upper bound of seconds. complete parts (a) through (c). question content area bottom part 1 (a) what is the mean service time from the customers? the mean service time from the customers is enter your response here seconds

Helga · Answer

The mean service  time  from the ​customers are  between  161.5 to 164.7 seconds.    The trade magazine QSR routinely  checks  the​ drive-through  service  times of​ fast-food restaurants.  A 90% confidence interval that results from  examining  607 customers in Taco Bell's drive-through has a  lower  bound of 161.5 seconds and an  upper  bound of 164.7 seconds.  Let's  denote  the mean service time by μ. Then, note that, we are given that n=607. Also, we are said that a 90% CI for μ is  given  by  (161.5,164.7)    This  implies  that we are 90% confident that μ  lies  in the interval. Or to be precise, this interval is a  realization  of a random interval that has 90% probability of covering the  true  mean. Thus, we are 90% confident that the mean service times of the restaurants are  between  161.5 to 164.7 seconds.    Hence the  answer  is The mean service  time  from the ​customers are  between  161.5 to 164.7 seconds.    To learn more about  mean  click here https://brainly.com/question/1136789    #SPJ4

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