In the 2008GSS, the 61 Hispanic respondents' average age at the birth of their first child was 22.95, with a sample standard deviation of 4.88. What is the 95% confidence interval for the population mean?
A) 21.69 ≤ μ ≤ 24.21
B) 21.90 ≤ μ ≤ 24.00
C) 21.50 ≤ μ ≤ 23.50
D) 18.07 ≤ μ ≤ 27.83

Question

Quizplus · Accepted Answer

Estimate of standard error is: .63, and we multiply this by 2.00 standard errors to get 1.26, which we subtract and add to the sample mean.

In the 2008GSS, the 61 Hispanic Respondents' Average Age at the Birth