At a local manufacturing plant, employees must complete new machine setups within 30 minutes. New machine setup times can be described by a normal model with a mean of 22 minutes and a standard deviation of four minutes. What percent of new machine setups take more than 30 minutes? O A. 52.28% OB. 2.28% O C. 47.72% O D. 97.72% OE. None of the above

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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At a local manufacturing plant, employees must complete new machine setups within 30 minutes. New machine setup times can be described by a normal model
with mean of 22 minutes and a standard deviation of four minutes. What percent of new machine setups take more than 30 minutes?
OA. 52.28%
OB. 2.28%
O C. 47.72%
O D. 97.72%
O E. None of the above
Transcribed Image Text:At a local manufacturing plant, employees must complete new machine setups within 30 minutes. New machine setup times can be described by a normal model with mean of 22 minutes and a standard deviation of four minutes. What percent of new machine setups take more than 30 minutes? OA. 52.28% OB. 2.28% O C. 47.72% O D. 97.72% O E. None of the above
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