Question

A researcher recently did a study of 5534 randomly selected married women. The researcher asked the age at which they married. The mean was 23.4 and the standard deviation was 4.7. Do you have all the necessary information to perform a test on whether the average age of marriage was greater than 18? If so, perform the test and do all necessary calculations. Find the P-Value using R-Project.

Answer 1

The secret to a longer life is to marry someone the same age, at least if you are a woman, researchers say.

Marriage generally improves life expectancy, but the age gap between a couple affects the life expectancy of men and women very differently.

Marrying an older man shortens a woman's lifespan, but having a younger husband reduces it even more, the study found.

The findings, drawn from the medical records of two million Danish couples, suggest that the best a woman can do is marry a man of about the same age.

Health records have shown previously that men live longer if they have a younger wife, an effect researchers expected to see mirrored in women who married younger men.