n	19
sample mean	30.16
stdev	9.54
confidence level: c =	0.95
degrees of freedom: =	18
t-critical: tc =	2.1
Error tolerance E: =	4.6
The confidence interval for the population mean female body fat µ is:
low	25.56
high	34.76
25.56	≤ µ ≤	34.76
YES. The population mean female body fat could be above 33%.