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13.13 Gender in two-child families. Refer to the Human Biology D (Feb. 2009) study on the gender of children in two-child BOYGRL families, Exercise 4.29 (p. 194). The article reported on the results of the National Health Interview Survey (NHIS) of 42,888 two-child families. The table below gives the num- ber of families with each gender configuration. Gender Configuration Girl-girl (GG) Boy-girl (BG) Girl-boy (GB) Number of Families 9,523 11,118 10,913 11,334 Boy-boy (BB) a. If it is just as likely to have a boy as a girl, find the probability of each of the gender configurations for a two-child family. + b. Use the probabilities, part a, to determine the expected number of families for each gender configuration. c. Compute the chi-square test statistic for testing the hypothesis that it is just as likely to have a boy as a girl. d. Interpret the result, part c, if you conduct the test using a = .10.

13.13 Gender in two-child families. Refer to the Human Biology D (Feb. 2009) study on the gender of children in two-child BOYGRL families, Exercise 4.29 (p. 194). The article reported on the results of the National Health Interview Survey (NHIS) of 42,888 two-child families. The table below gives the num- ber of families with each gender configuration. Gender Configuration Girl-girl (GG) Boy-girl (BG) Girl-boy (GB) Number of Families 9,523 11,118 10,913 11,334 Boy-boy (BB) a. If it is just as likely to have a boy as a girl, find the probability of each of the gender configurations for a two-child family. + b. Use the probabilities, part a, to determine the expected number of families for each gender configuration. c. Compute the chi-square test statistic for testing the hypothesis that it is just as likely to have a boy as a girl. d. Interpret the result, part c, if you conduct the test using a = .10.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
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13.13 Gender in two-child families. Refer to the Human Biology D (Feb. 2009) study on the gender of children in two-child BOYGRL families, Exercise 4.29 (p. 194). The article reported on the results of the National Health Interview Survey (NHIS) of 42,888 two-child families. The table below gives the num- ber of families with each gender configuration. Gender Configuration Girl-girl (GG) Boy-girl (BG) Girl-boy (GB) Number of Families 9,523 11,118 10,913 11,334 Boy-boy (BB) a. If it is just as likely to have a boy as a girl, find the probability of each of the gender configurations for a two-child family. + b. Use the probabilities, part a, to determine the expected number of families for each gender configuration. c. Compute the chi-square test statistic for testing the hypothesis that it is just as likely to have a boy as a girl. d. Interpret the result, part c, if you conduct the test using a = .10.
Transcribed Image Text:13.13 Gender in two-child families. Refer to the Human Biology D (Feb. 2009) study on the gender of children in two-child BOYGRL families, Exercise 4.29 (p. 194). The article reported on the results of the National Health Interview Survey (NHIS) of 42,888 two-child families. The table below gives the num- ber of families with each gender configuration. Gender Configuration Girl-girl (GG) Boy-girl (BG) Girl-boy (GB) Number of Families 9,523 11,118 10,913 11,334 Boy-boy (BB) a. If it is just as likely to have a boy as a girl, find the probability of each of the gender configurations for a two-child family. + b. Use the probabilities, part a, to determine the expected number of families for each gender configuration. c. Compute the chi-square test statistic for testing the hypothesis that it is just as likely to have a boy as a girl. d. Interpret the result, part c, if you conduct the test using a = .10.
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