Assignment:
A study is run to estimate the mean total cholesterol level in children 2- 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measures as follows: 185,180,225,240,194,147,196,175 and 223.
a. Compute the sample mean
b. Compute the sample standard deviation
c. Compute the median
d. Compute the first and third quartiles
e. Which measure, the mean or median, is better measure of a typical value?
f. Which measures, the standard deviation or the inter-quartile range, is better measures of dispersion?