A historian wants to estimate the average age at marriage for women in New Engla

Question

A historian wants to estimate the average age at marriage for women in New England in the early nineteenth century. Within her state archives, she finds marriage records for the years 1800-1820. She takes a sample of 100 of those records, noting the age of the bride for each. The average age of the brides in the sample is 24.1 years. Using a statistical method, she finds a margin of error and estimates that the average age of brides in this population was between 23.5 and 24.7.

What is (are) the variable(s)?

(a) Age at marriage

(b) Age at marriage and whether or not the bride was chosen to be in the sample (values: yes, no)

(c) Age at marriage and whether the marriage was recorded (values: yes, no)

(d) Age at marriage and where marriage took place (values: in New England, not in New England)

(e) Age at marriage and when marriage took place (values: in early part of nineteenth century, not then)

(f) Age at marriage and gender (values: male, female)

Explanation / Answer

The variable is the age of the marriage of the bride.

So the answer is:

(a) Age at marriage

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