In a sample of 80 children, the mean age at which they first began to combine words was 16.51 months with a sample standard deviation of 9.59 months.  Construct a 95% confidence interval for the mean age children begin to combine words. What is the Upper Bound of the confidence interval?    Question 4 options:   16.51   16.999   17.001   18.644

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a sample of 80 children, the mean age at which they first began to combine words was 16.51 months with a sample standard deviation of 9.59 months. 

Construct a 95% confidence interval for the mean age children begin to combine words.

What is the Upper Bound of the confidence interval? 

 

Question 4 options:

 

16.51

 

16.999

 

17.001

 

18.644

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