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 104.1 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 statistic for the month because the data collected represent a sample. d. the given value is a parameter for the month because the data collected represent a population.

Explanation:

A parameter describes a characteristic of a population, while a statistic describes a characteristic of a sample. Here, the homeowner measured the voltage on all 30 days of the month, so the data set is the entire population (all voltage - measurements for that month). The mean value calculated from this population data is a parameter.

Answer:

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