MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The 2008 General Social Survey asked, “What do you think is the ideal number of children for a family to have?” The 678 females who responded had a median of 2, mean of 3.22, and standard deviation of 1.99.

Determine whether the following statements are true or false, and explain your reasoning.

(a) 99% the women in the samples thought that the ideal number of children is between 3.02 and 3.42.

(b) If a new sample was taken, we are 99% confident that the sample mean of the new sample would lie between 3.02 and 3.42.

(c) The margin of error of the 99% confidence interval (3.02, 3.42) is 0.2.

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