A study examined whether children of mothers who smoked while pregnant tended to
ID: 3259677 • Letter: A
Question
A study examined whether children of mothers who smoked while pregnant tended to be physically underdeveloped compared to children whose mothers did not smoke while pregnant. The study used a t-test to compare the weights of 354-elementary school children. What did the variables in the study test?
a. The relationship of a mother’s smoking status to the child’s weight
b. The difference between the children’s weight relative to their mothers’ smoothing status
c. The differences between a child’s weight relative to the child’s mother’s weight
d. The relationship between the children’s weight given their mother’s
Explanation / Answer
In two sample t test we can we can test whether the difference between two population means are significance on the basis of sample obtained from that groups. So if we take data of weights of children and status of their mother's then we can easily find the necessary statistic for two sample t test. So the correct option of the above question is a)
a. The relationship of a mother’s smoking status to the child’s weight
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