E 1 QUESTION 1 A researcher is interested in investigating

E #1 :

QUESTION 1

A researcher is interested in investigating the differences between men and women with respect to the age at which a person’s first child is born. Using the General Social Survey (GSS) the researcher has calculated the following statistics using Excel for the age at which men (Group 1) and women (Group 2) reported their first child was born. Assume the population standard deviations are equal.
  

The researcher wishes to test whether the true mean ages at which men and women have their first child are different, at the 0.05 level. Which of the following correctly expresses the null and alternative hypotheses?

Answer options:

Solution

the answer is the first bevause we are talikinmg about the mean of two population