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- 1Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on 295 days of a given year, and the average (mean) value is 121.3 volts.The given value is a statistic for the year because the data collected represent a sample
- 2In a study of a sample of babies born at hospitals in one state, it was found that the average (mean) weight at birth was 3189.0 grams. Identify whether this value is a statistic or a parameter.The value is a statistic because it described some characteristics of a sample
- 3State whether the data described below are discrete or continuous, and explain why. The velocities of different meteorites relative to earthThe data are continuous cause the data can take on any value in an interval
- 4State whether the data described below are discrete or continuous, and explain why. The exact length (in km) of the ocean coastlines of different countries Or The width (cm) of different painting in an art museumThe data are continuous cause the data can take on any value in an interval
- 5Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Types of restaurants (fast food, organic food, seafood and etc)The nominal level of measurement is more appropriate cause the data cannot be ordered
- 6Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Monthly Temps: 61 F, 65 F, 73 F, and 77 FInterval
- 7Identify the level of measurement of the data, and explain what is wrong with the given calculation.The nominal level of measurement is characterized by data that consist of names, labels, or categories only. The data cannot be arranged in an ordering scheme (such as low to high).
Data are at the ordinal level of measurement if they can be arranged in some order, but differences (obtained by subtraction) between data values either cannot be determined or are meaningless.
The interval level of measurement is like the ordinal level, with the additional property that the difference between any two data values is meaningful. However, data at this level do not have a natural zero starting point (where none of the quantity is present).
The ratio level of measurement is like the interval level with the additional property that there is also a natural zero starting point (where zero indicates that none of the quantity is present). For values at this level, differences and ratios are both meaningful. - 8Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a survey, the favorite food of respondents are identified as 0 for ilatail food, 1 for Mexican, 2 for Chinese and 3 for anything else. The mean is calculated for 756 respondents and the result is 1.1The data is nominal level of measurement
Such data are not counts of anything, so it makes no sense to compute their average(mean) - 9Which is NOT a level of measurement A. Quantitative B. Ratio. C. Nominal D. OrdinalA. Quantitative
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- Mathematics FlashCards sobre Sem título, criado por Racheal Lefevre em 27-05-2023.
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