Taurig and Sue-Ellen have been married for 27 years and they have nineteen beaut

Question

Taurig and Sue-Ellen have been married for 27 years and they have nineteen beautiful sons. Sue-Ellen really wants a daughter to wear the wedding dress that her mother, Quin, made for her. The chance that their next child will be a girl, assuming that the law of independence holds is:

a. (1/2)^28
b. 1/2
c. (1/3)^27
d. (2)^28
e. 1/5

21. The fraction of nineteen child families which are all male is
a. (1/2)^19 b. 1/2 c. (2)^19 d. 6 e. 5/19

22. Under normal conditions the expected sex ratio in humans is 1:1, 50:50 or 1/2 : 1/2. The chi-square associated with Taurig and Sue-Ellen's little family, under this hypothesis is:
a. 4576.45 b. 19 c. 3.84 d. 6.78 e. 0.0

23. The probability that sex determination is normal for this couple may be:
a. accepted as consistent with the data.
b. rejected with a probability of less than .05 that a true hypothesis is being rejected.
c. absolutely rejected
d. a & b
e. a & c

Explanation / Answer

a. (1/2)^28 a. (1/2)^19 c. 3.84 c. absolutely rejected

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