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In a random sample of five (5) children, the age at which they first began to combine words in speaking had a mean of 16.5 months and a standard deviation 9.6 months. Assuming normality of the population, a 90% confidence interval for the age in months at which all children begin to combine words is approximately best described as Note: Due to rounding, your answer may be slightly different than the correct choice listed here so choose the best or most approximate answer. O (7.8, 25.2) O (10.2 , 22.8) O (12.4 , 20.6) O (7.3, 25.7) (9.9,23.1)

In a random sample of five (5) children, the age at which they first began to combine words in speaking had a mean of 16.5 months and a standard deviation 9.6 months. Assuming normality of the population, a 90% confidence interval for the age in months at which all children begin to combine words is approximately best described as Note: Due to rounding, your answer may be slightly different than the correct choice listed here so choose the best or most approximate answer. O (7.8, 25.2) O (10.2 , 22.8) O (12.4 , 20.6) O (7.3, 25.7) (9.9,23.1)

MATLAB: An Introduction with Applications
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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In a random sample of five (5) children, the age at which they first began to combine words in speaking had a mean of 16.5 months and a standard deviation 9.6 months. Assuming normality of the population, a 90% confidence interval for the age in months at which all children begin to combine words is approximately best described as Note: Due to rounding, your answer may be slightly different than the correct choice listed here so choose the best or most approximate answer. O (7.8 , 25.2) O (10.2 , 22.8) O (12.4 , 20.6) O (7.3, 25.7) O (9.9, 23.1)
Transcribed Image Text:In a random sample of five (5) children, the age at which they first began to combine words in speaking had a mean of 16.5 months and a standard deviation 9.6 months. Assuming normality of the population, a 90% confidence interval for the age in months at which all children begin to combine words is approximately best described as Note: Due to rounding, your answer may be slightly different than the correct choice listed here so choose the best or most approximate answer. O (7.8 , 25.2) O (10.2 , 22.8) O (12.4 , 20.6) O (7.3, 25.7) O (9.9, 23.1)
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