The Heights of a Random Sample of 100 Women Are $\pm$

Multiple Choice

The heights of a random sample of 100 women are recorded. The sample mean is 65.3 inches and the sample standard deviation is 3 inches. Which of the following is an approximate 95% confidence interval for the population mean?

A) 65.3 $\pm$ (2) (0.03)
B) 65.3 $\pm$ (2) (0.3)
C) 65.3 $\pm$ (2) (3)
D) 65.3 $\pm$ (2) (30)