Statistics: Calculating Confidence Intervals – #29362


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 16th 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 =

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