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Definition
| The art/science of collecting, interpreting, and analyzing data (after designing and experimenting) |
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| A group of objects with common identifying characteristics; membership must be clearly defined |
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Definition
| A property of a sample (X-bar) |
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| Characteristic or property of a population |
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| Random Sampling Variation |
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Definition
| The uncertainty surrounding estimates of parameters (standard error of the mean) |
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Definition
| As sample size is increased, the accuracy of the statistic increases |
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| The shape of the sampling distribution becomes normally distributed as sample size increases regardless of the shape of the population distribtuion |
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| 'peakedness' of the curve or fourth moment around the mean of a population distribution |
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| Classified by quality not quantity (example: hair color, zodiac sign) |
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Definition
| Constant interval and a true zero point (example: weights, volumes) |
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| Constant interval, zero point is arbitrary (example: C or F temps) |
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Definition
| Not equal units apart (example: places in a race) |
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| Software that translate a program from high level language to machine language and back again |
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Definition
| each and every member of the population has an equal and independent chance of being chosen (each and every random set of data from a population has an equal and independent chance) |
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Definition
| Data stored as strength of current |
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Definition
| Data stored as 1 or 0 (binary or machine language) |
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Definition
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Definition
| Closeness of repeated measurements of the same object |
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| Pattern to the errors (always over or under estimate) |
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Definition
| Variables that are not studied in an experiment yet can affect the response variables |
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Definition
| A frequency distribution of some random variable (i.e. X) for a population |
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Definition
| A theoretical frequency distribution of some statistic (i.e. X-bar) for many samples of a given sample size from a population |
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Definition
| A frequency distribution of some random variable (i.e. X) for a sample |
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Definition
| A population is broken into strata based on some variable and the sampling intensities are varied by the strata |
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| Center of Gravity for a Population Distribution |
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Definition
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| Center of Gravity for Sample Distribution |
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Definition
| Systematic choice (every 5th person, every 100 feet) |
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