According to a town's census the distribution of energy use has a median of 27 kw of electricity a month with a variation of 2 kw. Jill surveys 50 homes in her neighborhood and finds the median to be 20 kw with a variation of 10 kw. How can
she get her survey statistics to more closely approximate the population parameters?
-0)
A)
Increase her sample size.
B)
Choose some different houses to survey.
Get a more random sample from the town.
D)
Recalculate because she must have made a mistake.