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  Encyclopedia of Keywords > Information > Science > Mathematics > Statistics > Statistic   Michael Charnine

Keywords and Sections
WALD
TEST STATISTIC
CRITICAL VALUE
PROC FREQ COMPUTES
CHI-SQUARE STATISTIC
PROC UNIVARIATE
NULL HYPOTHESIS
STANDARD ERROR
EDF STATISTICS
CMH STATISTIC
SAMPLE MEAN
FREEDOM
STATISTIC PARAMETERS
CONFIDENCE LEVEL
WILCOXON
Q-STATISTIC
ORDER STATISTICS
OBSERVED VALUE
STATISTIC USED
COMPUTED
STATISTIC
SAMPLE STATISTIC
Review of Short Phrases and Links

    This Review contains major "Statistic"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Statistic: A statistic is a quantity that is calculated from a sample of data. (Web site)
  2. A statistic is to a sample as a parameter is to a population. (Web site)
  3. A statistic is a function of an observable random sample. (Web site)
  4. A statistic is an algebraic expression combining scores into a single number.
  5. The statistic is an estimate of the parameter , the population average. (Web site)

Wald

  1. The Wald statistic and its corresponding p probability level is part of SPSS output in the "Variables in the Equation" table.
  2. The last two characters of the type value specify the kind of regression model used to compute the Dickey-Fuller test statistic. (Web site)
  3. Sample size has an indirect effect on power because it affects the measure of variance we use to calculate the t-test statistic.
  4. That is, there is a flaw in the Wald statistic such that very large effects may lead to large standard errors and small Wald chi-square values.
  5. They are used in both the Wald 95% Confidence Limits, superscript n, and the Chi-Square test statistic, superscript o. (Web site)

Test Statistic

  1. Under this null hypothesis, the trend test statistic is asymptotically distributed as a standard normal random variable.
  2. If the p-value is large, then this indicates that the test statistic is usual (common)---we take this as a lack of evidence against the null hypothesis.
  3. A chi-square test is any statistical hypothesis test in which the test statistic has a chi-square distribution if the null hypothesis is true. (Web site)

Critical Value

  1. If the critical value is 2.77, the table denominator of the t statistic.
  2. To be statistically significant according to Tukey's HSD, a t statistic must exceed 2.80.
  3. The F-test statistic cdf value is an alternative way of expressing the critical value.

Proc Freq Computes

  1. The CMH statistics that PROC FREQ computes are the correlation statistic, the ANOVA (row mean scores) statistic, and the general association statistic. (Web site)
  2. Otherwise, when the test statistic is less than or equal to its expected value, PROC FREQ computes the left-sided p -value.

Chi-Square Statistic

  1. The sixth shows the p-value for the chi-square statistic. (Web site)
  2. The Pearson correlation, and thus the Mantel-Haenszel chi-square statistic, use the scores you specify in the SCORES= option in the TABLES statement.
  3. Under the null hypothesis, Cochran's Q is an approximate chi-square statistic with degrees of freedom.

Proc Univariate

  1. By default, PROC UNIVARIATE computes a t statistic for the null hypothesis that , along with related statistics. (Web site)
  2. If the sample size is less than or equal to 2000, PROC UNIVARIATE calculates the Shapiro-Wilk W statistic.

Null Hypothesis

  1. The likelihood-ratio test rejects the null hypothesis if the value of this statistic is too small, and is justified by the Neyman-Pearson lemma. (Web site)
  2. With a z-statistic of 1.71, we can reject the null hypothesis in favor of a one-tailed alternative at a 5 percent level, but not at a 2.5 percent level. (Web site)

Standard Error

  1. The true standard error of the statistic is the square root of the true sampling variance of the statistic. (Web site)
  2. You can also get a jackknife estimate of the standard error of a statistic. (Web site)

Edf Statistics

  1. The Kolmogorov-Smirnov statistic belongs to the supremum class of EDF statistics.
  2. Anderson-Darling Statistic The Anderson-Darling statistic and the Cramer-von Mises statistic belong to the quadratic class of EDF statistics.

Cmh Statistic

  1. When there is more than one stratum, then the CMH statistic becomes a stratum-adjusted Pearson chi-square statistic. (Web site)
  2. If there is more than one stratum, then this CMH statistic corresponds to a stratum-adjusted ANOVA or Kruskal-Wallis test. (Web site)
  3. For more information on when to use a statistic and how to interpret the results, refer to Agresti (1996) and Stokes et al.

Sample Mean

  1. This t statistic is the difference between the sample mean and the hypothesized mean divided by the estimated standard error of the mean. (Web site)
  2. Step 4 . Test statistic: We are not given any information other than the two sample means.

Freedom

  1. To avoid this situation, you should use the degrees of freedom adjusted R-square statistic described below.
  2. Degrees of freedom (df) : The number of independent units of information in a sample used in the estimation of a parameter or calculation of a statistic. (Web site)
  3. Note, however, that the square of the z-test statistic is only about half of the change in deviance.

Statistic Parameters

  1. MVBeta Beta distribution statistic parameters.
  2. MVStudent Student distribution statistic parameters.
  3. In addition, the you can also request to compute the Kolmogorov-Smirnov one-sample d statistic (see also Nonparametrics and Distributions for more details). (Web site)
  4. Map the "real" statistic to the Monte Carlo distribution; use the would-be percentile rank of the "real" statistic to estimate its p- value.

Confidence Level

  1. The interquartile range is a more stable statistic than the range, and is usually preferred to that statistic.
  2. The distribution of the statistic t is approximately N(0,1). So, you should reject Ho if |t| 1.96 at the 95% confidence level. (Web site)

Wilcoxon

  1. One and two sample examples of rank statistics such as sign statistic, Wilcoxon signed rank statistics, Wilcoxon two sample statistics etc.
  2. The Wilcoxon two-sample test statistic equals 999.0, which is the sum of the Wilcoxon scores for the smaller sample (Active). (Web site)

Q-Statistic

  1. The Tukey HSD test is based on the q-statistic (the Studentized range distribution) and is limited to pairwise comparisons.
  2. Games-Howell GH Games-Howell, designed for unequal variances and unequal sample sizes, is based on the q-statistic distribution.

Order Statistics

  1. The graph on the right shows the density function of the selected order statistic in blue and the empirical density function in red. (Web site)
  2. For a sample of size N, common order statistics are the extremes, the minimum (first order statistic) and maximum ( N th order statistic). (Web site)

Observed Value

  1. First, the difference in means between the two samples is calculated - this is the observed value of the test statistic, T(obs). (Web site)
  2. For these tests, PROC FREQ computes the right-sided p -value when the observed value of the test statistic is greater than its expected value.

Statistic Used

  1. The critical values of a modified Kuiper's test statistic are used according to the tabulation given in Stephens (1970). (Web site)
  2. That is called the critical region of the test statistic.
  3. The distribution of the test statistic is used to calculate the probability sets of possible values (usually an interval or union of intervals).
  4. Specify the type value that corresponds to the way that you calculated the test statistic x. (Web site)
  5. The estimators are obtained by regressing on .The t statistic of the ordinary least squares estimator of is the test statistic for the unit root test. (Web site)

Computed

  1. The Kolmogorov-Smirnov statistic is computed as the maximum of and .
  2. In other words, a descriptive statistic will describe that set of measurements. (Web site)
  3. Deviance. To evaluate the goodness of fit of a generalized linear model, a common statistic that is computed is the so-called Deviance statistic. (Web site)
  4. F-test A computed statistic, which under an appropriate null hypothesis has an approximate F-Distribution. (Web site)
  5. The T2 statistic is the two-way analysis of variance statistic computed on the ranks R(X ij). (Web site)

Statistic

  1. The square of the t-statistic is equal to an F-statistic for k=2. (Web site)

Sample Statistic

  1. A sample statistic gives information about a corresponding population parameter. (Web site)
  2. If the statistic is a percentage, this maximum margin of error can be calculated as the radius of the confidence interval for a reported percentage of 50%. (Web site)
  3. The statistic is never negative, and has a maximum value less than 1, depending on the number of rows and columns in the contingency table. (Web site)
  4. Its best use is in conjunction with another scale statistic like the sample standard deviation. (Web site)
  5. When neither sample size is less than 10, then the sampling distribution is approximately normal for the runs statistic ( u).

Categories

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  Short phrases about "Statistic"
  Originally created: August 16, 2007.
  Links checked: February 19, 2013.
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