1) In a recent study reported Oct. 29, 2012 on the Flurry Blog, the mean age of tablet users is 30 years. Suppose the standard deviation is 10 years. Take a sample of size n = 121. What are the mean and standard deviation for the sample mearrages of tablet users? What does the distribution look like? Find the probability that the sample mean age is more than 31 years (the reported mean age of tablet users in this particular study). Find the 90th percentile for the sample mean age.

1) In a recent study reported Oct. 29, 2012 on the Flurry Blog, the mean age of tablet users is 30 years. Suppose the standard deviation is 10 years. Take a sample of size n = 121. What are the mean and standard deviation for the sample mearrages of tablet users? What does the distribution look like? Find the probability that the sample mean age is more than 31 years (the reported mean age of tablet users in this particular study). Find the 90th percentile for the sample mean age.

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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