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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Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a​ girl, but assume that the method has no​ effect, so the probability of a girl is 0.5. Assume that the groups consist of 23 couples. Complete parts​ (a) through​ (c) below.
 
a. Find the mean and the standard deviation for the numbers of girls in groups of 23births.
The value of the mean is μ=11.511.5.
The value of the standard deviation is σ=2.42.4.
 
B. Use the range rule of thumb to find the values separating results that are significantly low or significantly high.
 
Values of  (    ) girls or fewer are significantly low.
​(Round to one decimal place as​ needed.)
Expert Solution
Check Mark
Step 1

From the provided information,

Sample size (n) = 23

Probability of a girl (p) = 0.5

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