Do daughters tend to be taller than their mothers? To answer this question, the heights of mothers and daughters from 20 families were recorded. Which of the following is the better method for testing whether daughters tend to be taller than mothers?
A)Sign test
B)Data transformation and t-confidence interval of transformed data
C)Mann-Whitney Test
D)Independent samples t-test

Question

Quizplus · Accepted Answer

The Sign test is the better method for testing whether daughters tend to be taller than their mothers because it is a non-parametric test that can be used to test the median difference between paired observations (in this case, the heights of mothers and daughters within the same families). It does not require the assumption of normal distribution, making it suitable for this type of comparison.

Do Daughters Tend to Be Taller Than Their Mothers? to Answer