Question

determine whether the given value is a statistic or a parameter. a homeowner measured the voltage supplied to his home on all 30 days of a given month, and the average (mean) value is 102.1 volts. choose the correct answer below. a. the given value is a parameter for the month because the data collected represent a sample. b. the given value is a statistic for the month because the data collected represent a population. c. the given value is a parameter for the month because the data collected represent a population. d. the given value is a statistic for the month because the data collected represent a sample.

Explanation:

A parameter describes a population, while a statistic describes a sample. The homeowner measured the voltage for all 30 days of a month, so the data represents the entire population (all days in that month for his home - voltage measurements). The mean calculated from this population data is a parameter.

Answer:

C. The given value is a parameter for the month because the data collected represent a population.