**Sample size determination** — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample … Wikipedia

**Sample mean and sample covariance** — are statistics computed from a collection of data, thought of as being random.ample mean and covarianceGiven a random sample extstyle mathbf{x} {1},ldots,mathbf{x} {N} from an extstyle n dimensional random variable extstyle mathbf{X} (i.e.,… … Wikipedia

**Sample size** — The sample size of a statistical sample is the number of observations that constitute it. It is typically denoted n , a positive integer (natural number).Typically, all else being equal, a larger sample size leads to increased precision in… … Wikipedia

**sample standard deviation** — an estimate of the population standard deviation, usually determined (from a sample of size n) by dividing the sum of the squared deviations from the sample mean by n−1 and taking the square root; n−1 is used (rather than n) in order… … Medical dictionary

**estimate** — I. transitive verb ( mated; mating) Etymology: Latin aestimatus, past participle of aestimare to value, estimate Date: circa 1532 1. archaic a. esteem b. appraise 2. a. to … New Collegiate Dictionary

**estimate** — 1. A measurement or a statement about the value of some quantity that is known, believed, or suspected to incorporate some degree of error. 2. The result of applying any estimator to a random sample of data. It is not a random variable but a… … Medical dictionary

**Random sample** — A sample is a subject chosen from a population for investigation. A random sample is one chosen by a method involving an unpredictable component. Random sampling can also refer to taking a number of independent observations from the same… … Wikipedia

**Good faith estimate** — A good faith estimate must be provided by a mortgage lender or broker in the United States to a customer, as required by the Real Estate Settlement Procedures Act (RESPA). The estimate must include an itemized list of fees and costs associated… … Wikipedia

**consistent estimate** — a statistic that converges to the true value of the parameter being estimated (population parameter) as the sample size increases; i.e., the estimate value can be made as statistically close to the true value as desired by taking a large enough… … Medical dictionary

**maximum likelihood estimate** — the estimate of a parameter describing a population distribution that makes the likelihood function take its maximum value; an estimate of the parameter that maximizes the probability of obtaining the sample values actually observed … Medical dictionary