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 117.9 volts. choose the correct answer below. a. the given value is a parameter for the month because the data collected represent a population. 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 sample. d. the given value is a statistic for the month because the data collected represent a sample.

Explanation:

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

Answer:

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