normally distributed. Round intermediate z-value calculations to two decimal places and the final answers to at least four decimal places. Part 1 of 2 If a proofreader from the company is randomly selected, find the probability that his or her age will be between 36 and 37.5 years. P(36X<37.5) = 0.1589 Part: 1 / 2 Part 2 of 2 G If a random sample of 22 proofreaders is selected, find the probability that the mean age of the proofreaders in the sample will be between 36 and 37.5 years. Assume that the sample is taken from a large population and the correction factor can be ignored. P(36 < X <37.5) = X
normally distributed. Round intermediate z-value calculations to two decimal places and the final answers to at least four decimal places. Part 1 of 2 If a proofreader from the company is randomly selected, find the probability that his or her age will be between 36 and 37.5 years. P(36X<37.5) = 0.1589 Part: 1 / 2 Part 2 of 2 G If a random sample of 22 proofreaders is selected, find the probability that the mean age of the proofreaders in the sample will be between 36 and 37.5 years. Assume that the sample is taken from a large population and the correction factor can be ignored. P(36 < X <37.5) = X
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Ages of Proofreaders At a large publishing company, the mean age of proofreaders is 36.2 years and the standard deviation is 3.7 years. Assume the variable
is normally distributed. Round intermediate z-value calculations to two decimal places and the final answers to at least four decimal places.
Part 1 of 2
If a proofreader from the company is randomly selected, find the probability that his or her age will be between 36 and 37.5 years.
P (36 < X < 37.5) = 0.1589
Part: 1 / 2
Part 2 of 2
G
If a random sample of 22 proofreaders is selected, find the probability that the mean age of the proofreaders in the sample will be between 36 and 37.5
years. Assume that the sample is taken from a large population and the correction factor can be ignored.
P (36 < X <37.5) =
X
Expert Solution
Step 1: Given that
X~N( μ , ?)
μ=36.2 , ?=3.7
Z-score =( x - μ )/?
Step by step
Solved in 3 steps
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