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sample data 4.9 goal sample size sample mean 0.75 25 4.372 5 or< 10.5 3.2 7.7 0.1875 0.0075 0.0866 2.3 3.2 9.5 6.7 5.5 standard error of the proportion Wait times less than 5 18 sample proportion 0.72 0.5 2.3 z score 0.35 Managers at a local phone service wireless retail center have a goal that 75% of the center's customers will have to wait less than five minutes for service. The data below shows the wait times of a random sample of 25 customers in minutes. Does this sample provide evidence that management's goal is being achieved? 3.3 2.3 4.5

sample data 4.9 goal sample size sample mean 0.75 25 4.372 5 or< 10.5 3.2 7.7 0.1875 0.0075 0.0866 2.3 3.2 9.5 6.7 5.5 standard error of the proportion Wait times less than 5 18 sample proportion 0.72 0.5 2.3 z score 0.35 Managers at a local phone service wireless retail center have a goal that 75% of the center's customers will have to wait less than five minutes for service. The data below shows the wait times of a random sample of 25 customers in minutes. Does this sample provide evidence that management's goal is being achieved? 3.3 2.3 4.5

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.3: Shapes Of Distributions
Problem 20E
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I am stuck on the question below. I have been able to figure out everything down to the last part. I am to use Excel in the assignment. 

I know that I will be using the excel formula norm.dist(x,mean,standarddeviation,true)

but I am having issues with plugging in the data correctly in the formula .. please assist ensuring to show me what should be plugged into the excel formula

 

sample data 4.9 goal sample size sample mean 0.75 25 4.372 5 or< 10.5 3.2 7.7 0.1875 0.0075 0.0866 2.3 3.2 9.5 6.7 5.5 standard error of the proportion Wait times less than 5 18 sample proportion 0.72 0.5 2.3 z score 0.35 Managers at a local phone service wireless retail center have a goal that 75% of the center's customers will have to wait less than five minutes for service. The data below shows the wait times of a random sample of 25 customers in minutes. Does this sample provide evidence that management's goal is being achieved? 3.3 2.3 4.5
Transcribed Image Text:sample data 4.9 goal sample size sample mean 0.75 25 4.372 5 or< 10.5 3.2 7.7 0.1875 0.0075 0.0866 2.3 3.2 9.5 6.7 5.5 standard error of the proportion Wait times less than 5 18 sample proportion 0.72 0.5 2.3 z score 0.35 Managers at a local phone service wireless retail center have a goal that 75% of the center's customers will have to wait less than five minutes for service. The data below shows the wait times of a random sample of 25 customers in minutes. Does this sample provide evidence that management's goal is being achieved? 3.3 2.3 4.5
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