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I need help with number 4 AEM 202: Introduction to Quality Homework 04: Fundamentals of Statistics 4. [5 points] Z-scores a. If the mean time

I need help with number 4

AEM 202: Introduction to Quality Homework 04: Fundamentals of Statistics 4. [5 points] Z-scores a. If the mean time to check a PC for viruses is 120 minutes and the standard deviation is 40 minutes, what percentage of PCs will take between 210 minutes (3.5 hours) and 90 minutes (1.5 hours) to check? The data are normally distributed. [6 points] Assessing normality

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