front 1 How do a parameter and a statistic differ? | back 1 A parameter is a numerical measurement of a population; a statistic is a numerical measurement of a sample. |
front 2 Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on a random sample of 38 days, and the average (mean) value is 100.3 volts. | back 2 The given value is a statistic for the year because the data collected represent a sample. |
front 3 Which of the following would be classified as categorical data? | back 3 Hair color |
front 4 Determine whether the given value is from a discrete or continuous data set. When a car is randomly selected, it is found to have a gas tank that can hold 14.7 gal. | back 4 A continuous data set because there are infinitely many possible values and those values cannot be counted. |
front 5 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Voltage measurements of batteries: 1.5 V, 3 V, 4.5 V, 6 V, and 7.5 V | back 5 Ratio |
front 6 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Companies that produced movies in 2007. | back 6 The nominal level of measurement is most appropriate because data cannot be arranged in an ordering scheme. |
front 7 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Years in which a recession occurred. | back 7 The nominal level of measurement is most appropriate because the data cannot be ordered. |
front 8 Which of the following is NOT a level of measurement? | back 8 Quantitative |
front 9 Determine whether the given value is from a discrete or continuous data set. When a car is randomly selected, it is found to have enough room to seat 6 people. | back 9 A discrete data set because there are a finite number of possible values. |
front 10 Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on 287 days of a given year, and the average (mean) value is 126.4 volts. | back 10 The given value is a statistic for the year because the data collected represent a sample. |
front 11 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Mood levels of "happy," "alright," and "sad" | back 11 The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. |
front 12 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Types of restaurants (fast food, organic food, sea food, etc.) | back 12 The nominal level of measurement is most appropriate because data cannot be arranged in an ordering scheme. |