PDA

View Full Version : Statistics



Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 [36] 37 38 39 40 41 42 43 44 45 46 47 48 49

  1. Posterior Distribution
  2. P=1
  3. Sequential AIC model selection
  4. Microbial Plate counts...A nudge in the right direction or a kick if required.
  5. standarizing data
  6. Help answering some questions.
  7. Chi Square help
  8. Icc
  9. Likert Scale Help
  10. Two tailed t-test for data sets that do not follow normal distribution?
  11. Split Plot Problem?
  12. Should I report Shapiro-Wilk to justify Mann-Whitney in Results section?
  13. power analysis for a t-test of two slopes
  14. Partial Correlations
  15. deriving chi-square stat for contingency table
  16. Random sampling with random factors?
  17. Would the 'F' value change if the raw data was converted from metric to imperial?
  18. Constructing a Confidence Interval
  19. How to choose the best distribution among various distributions if.....?
  20. Data normally distributed or not?
  21. Use raw data or log10 transformed data?
  22. Chi-square problem
  23. how to identify trends in a time series
  24. Negative effect size?
  25. OLS/random effects model question...
  26. OLS question...
  27. Using the distribution function method to obtain the of density 1-e^-x
  28. Significance level if running linear/quadratic regressions AND pairwise comparisions
  29. OLS zero conditional mean failure: Proving Biasedness. need help
  30. Metropolis-Hastings Algorithm
  31. What analysis on symptom/cause pair frequency table?
  32. Semi-partial Correlations
  33. HELP! I can't figure out what analysis to run on my data
  34. Degrees of freedom for combined means
  35. shortest confidence interval
  36. effect of one variable on many variables
  37. Mean of Adjustments in Centered Linear Models--Incorrect textbook?
  38. Compare event rates
  39. Calculation of Type I and Type II probabilities
  40. Working backwards with a z-test?
  41. Test of significance (ordinal scale, differences between M and F)
  42. Segmentation based on catigorical variables
  43. increasing the r squared
  44. Equivalence Testing
  45. Chi-sq. and pairwise
  46. Finding Variable Pattern within Predefined Clusters
  47. SAS beginner
  48. question regarding testing three-way interaction term in multiple regression
  49. When should I use confidence and prediction bands?
  50. Statistical inference- and power
  51. unbiased confidence interval
  52. Comparing two multi-rater kappas
  53. paired t test for categorical variable
  54. IG distribution
  55. My experiment and general questions about 1-way, 1-way, repeated measures etc
  56. correlation
  57. Very long post - need help thanks
  58. post hoc test for chi-square
  59. Is this assumption about standard normal pdf and cdf holds?
  60. Examining the differences between two groups - which test?
  61. ARIMA (p,d,q) layman's terms
  62. Is this result for expectation with normal pdf and cdf correct?
  63. How to determine multivariate confidence in laymans terms
  64. can mediator variable turn positive significant relationship into a negitive one?
  65. bayes estimator
  66. [SOLVED] [HELP] i need help with them plz
  67. How to Convert from Nominal to Interval
  68. Discrete Data in Multiple Linear Regression (SAS)
  69. Design effects (or variances) of sampling methods?
  70. Nominal variables in a multiple regression analysis
  71. Steps in Multiple Linear Regression (predictive model buildling)
  72. Standard Error of Percentages/Ratio of Means
  73. Need help in interpreting indepedant t-test score..
  74. Can we solve this equation with pdf and cdf?
  75. Probability of correct alignment
  76. Not so trivial problem with expected value
  77. Interpreting factor loadings
  78. Survival Analysis + Median Survival Times
  79. Maximum Likelihood Estimation for Exponential Distribution
  80. Chi square problem
  81. Different results by using ONEWAY ANOVA and univariat multifactor ANOVA
  82. Assumption: Repeated Measure ANOVA
  83. Most probable extreme value and sample size
  84. Average of Averages?
  85. Is MANOVA what I need, or something else?
  86. Interpreting an interaction
  87. Multiple Regression. More of a theory based question
  88. SPSS - How to make script to produce hundreds of scatterdots MEAN vs Spearman easy?
  89. Feedback on Graph Desired
  90. Comparing Percentages
  91. Two dimensional variant of Kolmogorov-Smirnov test and implementation
  92. Political Ideology Self Identification vs. GPD and vs. Unemployment %
  93. variance of the sample variance of a random sample of normal r.vs
  94. proc reg vs. proc genmod
  95. Comparision of three cell lines in a rat model
  96. Deriving the MSE from the mean, SD and N
  97. which method should I use in this case?
  98. Lots of help needed!
  99. Which test can I run? Can I do a paired t-test?
  100. What sampling method is this?
  101. How to calculate P value in significance test?
  102. P-Value
  103. LogPearson 3 Parameters calculation
  104. Can a p-value in non-parametric tests (Mann-Whitney and Wilcoxon) be zero?
  105. How to calculate P-value in this context?
  106. How to test the normality assumption for a repeated measures ANOVA?
  107. Difference of means of data associated with confidence intervals
  108. Statistical independence as prerequisite for Henderson's mixed model equations
  109. [Analysis of Variance] - Repeated-measures ANOVA Questions
  110. moderating analysis in spss
  111. Very simple, yet tricky question about representing data in bar charts, any opinions?
  112. Use parametric or non-paramtric test based on variances?
  113. R question/Command to calculate Confidence Interval of a Mean?
  114. SEM and Bessel's correction
  115. Use of log-transformed data only if similar variances of log-transformed data?
  116. Standard deviation of final result which consists of 4 sets of measurements
  117. Statistics advice
  118. best test for this non-normal distribution?
  119. Seek confirmation for robust approach of describing non-parametric data set:confused:
  120. Basic concept: degrees of freedom
  121. MANCOVA Question. Please Help!
  122. questions about transformed data and ranking in t tests
  123. XTLOGIT - interpreting odds ratio. Am I on the right track??????
  124. help needed for 1% significance level
  125. Perhaps a simple ANOVA problem
  126. Beginner Question - Setting up a predictive model
  127. Finding z score of skewness and Kurtosis
  128. Hypothesis Test
  129. Proc report
  130. [Analysis of Variance] - Repeated-measures True or False
  131. HELP!!!! Factor Analysis help needed ASAP
  132. Statistically significant tests
  133. when to use the median and when the mean ?
  134. How to determine whether two datasets of two related variables are different?
  135. Regression diagnostics with large sample sizes
  136. how to perform spearman's rank with missing data?
  137. Time series problem - variance of w mean in an AR(1) process
  138. Looking for statistical test selection help
  139. Need Help With Simple Formula Design for Test Usage
  140. Partial deriviative with respect to standard deviation
  141. Experimental Design Problem for Engineering
  142. Exam Question (flawed?)
  143. Which test do I need - paired binomial data
  144. Multiplying curves
  145. Scheirer ray hare test, post hoc - please help!
  146. Fractional Factorial Design Question
  147. Comparing spectral reflectance curves - mean and variability (How??) Please!
  148. The relationship between sample size and MP-test power
  149. Nonparametric test
  150. Error in result of numerical trapezoidal integration
  151. Help writing an equation?
  152. Is this equivalence exists?
  153. confused about the class interval
  154. Latin Hypercube Sampling and Importance Sampling
  155. How to Get Confidence Intervals for Hospital admission Rates? Asymmetric Intervals?
  156. Suppose that the first four numbers that where chosen are (3,4,10,11). What is the
  157. Here is the distribution of the weight at birth for all babies born in the U.S:
  158. High inter-construct correlation and low VIF?
  159. what could be the meaning of last term in the correlation equation?
  160. SAS graph problem and regression diagnostics q
  161. Parametric testing: Evaluating independence of data pts from environmental sampling
  162. Correlation analysis, does the position of the decimal point matter?
  163. Regression for Medical Stats
  164. A very simple Statistics question
  165. Which test should I use to analyze meteorological data?
  166. Calculating 95% confidence interval from mean, SD and number of subjects
  167. Statistics in layman's terms. Does it exist?
  168. Two-sample t-test with weighted data
  169. Can I do correlation analysis with categorical data? If so, how?
  170. Trying to understand a heat map?
  171. Power Question
  172. Uniform distribution question
  173. Maximum likelihood estimator of a function of a parameter.
  174. Sig 1 tailed is ,000. What does this mean
  175. Log-linear model for heart disease?
  176. Im new to Statistics and in need of some help ?
  177. Quartile Question
  178. Multi-category input and continuous output
  179. Confusion with Spearman rho interpretation
  180. How to Get Confidence Intervals for Rates?
  181. Normal Distribution Question Approach
  182. Question on experimental analysis - and my proposed approach for critique!
  183. Exponential Family..
  184. why correltation for multivariate regression is always higher
  185. confusion on terminology
  186. comparing two dependent? groups
  187. Statistical power and sample size
  188. Mean and Variance
  189. [SOLVED] Time Series vs Repeated Measures
  190. Find critical region in Hypothesis Testing - Poisson Distribution
  191. Stats homework help! Power and Errors
  192. Coorelation
  193. MDS Cluster plot
  194. Randomization didn't work. How to Correct for Baseline difference? ANCOVA?
  195. Parametric or Nonparametric Correlations for Descriptive Stats Table?
  196. Sampling Methods
  197. Sample size for t-test
  198. Sampling Method and Uncertainty Analysis
  199. Empirical Mode Decomposition
  200. question about qq plot and correlations
  201. correlations
  202. clustering of data and correlations
  203. repeated measures? mixed effects?... help please!
  204. A question about ANCOVA
  205. Beer
  206. grofit package model validation
  207. Symbol in Likelihood ratio test exercise
  208. t-tests * 6
  209. general linear model
  210. Simple question re: correlation?
  211. Confidenc Interval
  212. Hypothesis Testing
  213. Bonferroni correction question
  214. Comparing two sets of percentages
  215. relationship between category and dependent variables
  216. Which topic in statistics can help me?
  217. Triple interaction general full factorial
  218. help regarding a book on statistics
  219. Chi square test
  220. Calculation MISE for a kernel density estimation
  221. [SOLVED] Binomial Power
  222. Adjusted Closing Price on stock sites - independant or not?
  223. Multiple Standard Deviations
  224. Ancillarity
  225. [SOLVED] Expected Value of Order Statistics from Standard Normal Distribution
  226. Help with ANOVA
  227. Comparison between modeled and unmodeled results - SAS proc GLM
  228. Help please!!
  229. More help please!
  230. Is it safe to say everything that gives you a coefficient's considered "regression"?
  231. Help with simple problem!
  232. Time series problem
  233. what kind of research design is this?
  234. Bandwidth selection for kernel density estimation
  235. simulating a repeated measures ANOVA with mixed linear model analysis
  236. A little help please...
  237. Help with multivariate analysis
  238. Equalitiy of Mean
  239. Question regarding confidence intervals
  240. Effect size for Wilcoxon Signed Rank
  241. P = .999, okay to report?
  242. Averge and Dispersion
  243. Help with summing variance from systematic samples
  244. Likert-type questionnaire analysis
  245. Sampling Estimates
  246. MVUE verification
  247. simple question but quite a few things I could add
  248. Generalised Estimating Equations with binary logistic response type
  249. Risk Analysis or Uncertainty Analysis Methods
  250. Adaptive winner selection from a list of scores