Question

A​ gender-selection technique is designed to increase the likelihood that a baby will be a girl. In the results of the​ gender-selection technique, 845 births consisted of 432 baby girls and 413 baby boys. In analyzing these​ results, assume that boys and girls are equally likely.

a. Find the probability of getting exactly 432 girls in 845 births.

b. Find the probability of getting 432 or more girls in 845 births. If boys and girls are equally​ likely, is 432 girls in 845 births unusually​ high?

c. Which probability is relevant for trying to determine whether the technique is​ effective: the result from part​ (a) or the result from part​ (b)? d. Based on the​ results, does it appear that the​ gender-selection technique is​ effective?

Answer 1