Question: Master nursing student collected BMI from 100 patients. Histogram of the data indicated that the distribution of BMI can be well approximated by normal distribution. It appears that 16^th sample percentile of her data was 22.5 kg/m² and 95% confidence interval for the population mean BMI was (27.7kg/m², 28.0kg/m²)

a) Approximately, the sample mean =

b) Approximately, the sample standard deviation =

c) Aprroximately, 0.975 sample quantile =