Essentials of Statistics, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780321926739
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 5.3, Problem 39BSC
XSORT Method of Gender Selection When testing a method of gender selection, we assume that the rate of female births is 50%, and we reject that assumption if we get results that are unusual in the sense that they are very unlikely to occur with the 50% rate. In a preliminary test of the XSORT method of gender selection, 14 births included 13 girls.
- a. Assuming a 50% rate of female births, find the
probability that in 14 births, the in number of girls is 13. - b. Assuming a 50% rate of female births, find the probability that in 14 births, the number of girls is 14.
- c. Assuming a 50% rate of female births, find the probability that in 14 births, the number of girls is 13 or more.
- d. Do these preliminary results suggest that the XSORT method is effective in increasing the likelihood of a baby being a girl? Explain.
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Chapter 5 Solutions
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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