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%. |