View Full Version : Statistics


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  1. a suitable roughly rescale
  2. Transforming data (normal distribution)
  3. Within and between group analysis for dichotomous data
  4. Simple Regression Questions
  5. Westinghouse Rules
  6. HLM Question
  7. What test should I use?
  8. help with decided what tests to use
  9. Repeated measures problem in SPSS
  10. Confidence Interval on Estimated Data
  11. Regression
  12. Really basic Chi-Squared goodness of fit question
  13. Statistics problem (probability) - please help
  14. ANCOVA post hocs?
  15. The one who solves this stats problem will be a genius for me.
  16. PCA questions
  17. F- tests?
  18. Anova
  19. ANOVA or ANCOVA
  20. Two-tail test and One-tail test....
  21. HELP with confidence intervals!
  22. First time I have ever been stumped
  23. Stats Project
  24. Z-Score for Biserial Correlation
  25. Regression with dummy variables
  26. Help!! Show me where i'm messing up!!
  27. comparing two data sets of variance
  28. Dummy Coding
  29. Massive difference in means but not significant
  30. transformation to chi-square distribution (to find confidence interval)
  31. I need help with a problem
  32. Help please!!!
  33. ANOVA's normality assumptions
  34. Experimental units in Completely Randomised Design(CRD)
  35. elementary question about SE
  36. Help! Not normal distribution inference statistics
  37. Urgent help with degrees of freedom!
  38. Finding correlation
  39. Sampling - Total probability of accepting bad lot
  40. Comparing statistical methods
  41. Post hoc tests on repeated measures with two between subjects factors?
  42. T-stats
  43. What model does this fit in? URGENT HELP PLEASE
  44. theoretical/practical importance of variance?
  45. Sample size and power analysis
  46. T-tests
  47. Comparing 2 percentages - how?
  48. finding observance significance level
  49. confused w/ binomial distrubition
  50. Help !
  51. Percentiles
  52. Permutation and proportions
  53. P-Values
  54. Experimental Design and Treatment with Different Conditions
  55. Regression Analysis
  56. Case Study: Professional Sales. Lost and Need Help
  57. randomization question
  58. Need help on a few problems...
  59. null hypothesis and two-tailed testing
  60. Im not good at stat can someone help me?
  61. Kaplan-Meier vs Nelson-Aalen
  62. Statistics project: hypothesis testing
  63. Mixed Three Factor ANOVA, Mauchly problem please help!
  64. Omg!! I have been up for over 12 hours trying to do this. I am stumped. Please help!
  65. Adjusted t-test
  66. HELLLLP!!! ranking/rating stats help needed :(
  67. T-tests or what?
  68. Would a MANCOVA be appropriate for this situation?
  69. Not sure what test to use in SPSS?
  70. Cochrane-Orcutt
  71. binary logistic regression: distribution of the dependent variable
  72. Sample size for a nominal data survey (sort of)
  73. is a paired sample better?
  74. guidance on selecting doc
  75. simple normal distribution question
  76. finding p-value
  77. Detemining Sample and Expert size
  78. naming w/ factor analysis
  79. Testing for differences between ordinal variables?
  80. Remove fixed effects (time demeaned variables)
  81. ANOVA - strength of correlation question
  82. Lots of help needed with RM ANOVA
  83. Why is Z0.05 = 1.645?
  84. Chi square goodness of fit test
  85. Normality
  86. types of test statistics
  87. How to calculate the observed information matrix of multivariate normal distribution?
  88. What is Frequentist Statistics
  89. manova help??
  90. A problem about poisson process
  91. comment représenter graphiquement ce constat?
  92. Confidence interval/Hypothesis testing...
  93. relationship between CI and sample sizes
  94. Relation between gamma function and exponential function
  95. chi square
  96. Should I use Kruskal-Wallis?
  97. using different test statistics (in general)
  98. Normality in Principal Component Analyses
  99. Obtaining Residuals in Chi Square Goodness of Fit
  100. Effect Size
  101. Differences between 3 categories based on continuous and categorical predictors
  102. Similarity of data sets
  103. May need some help!
  104. Hypothesis Testing with the Z Distrubtion
  105. Conditional Predictive Ability Test - please help!
  106. Mediator and mediating effects
  107. HELP-Tukeys test
  108. Question regarding interaction terms in a nested ANOVA
  109. Coefficient of variation
  110. newbie question about questionnaires
  111. linear mixed models without the intercept
  112. OLS assumptions after estimating robust standard errors
  113. Interpreting a moderation effect
  114. question about confidence interval
  115. Confidence Intervals, Test of Significance, Matched Pairs Test of Significance
  116. limiting distribution
  117. Really need your help
  118. Multiple observations from one sample?
  119. Please help me with my hw!!!
  120. Non-Parametric Dunnett's Post HOC test?
  121. Rayleigh Distributed?
  122. Does this formula have a proper name? q = (RA - RB ) / SE
  123. Simple Random Samping WITH replacement Probem: Please HElp!! :(
  124. The variance of OLS Estimator
  125. t-test vs ANOVA
  126. Problem about Cp
  127. hypothesis testing help
  128. Hypothesis Help
  129. Regression non-homogenity
  130. Dependent variable kurtosis
  131. Independent variable kurtosis in multiple regression...
  132. P-value help!
  133. correlations vs regression
  134. Shapiro-Wilks Test
  135. binomial/sign test
  136. ANCOVA test of homogeneity of regression slopes
  137. Curved and weighted ratings.
  138. Which parametric test do I choose?
  139. ANOVA help..
  140. Testing inter-examiner reliability (likert data)
  141. (mis)-use of Post-Hoc tests. Theory question....
  142. cothe coefficient of skewness
  143. confidence interval questions
  144. Linear model after transformation
  145. Mediation analyses problem
  146. Margin of Error/Confidence Interval Question
  147. Sample
  148. Validity of setting constant to zero
  149. comparing linear mixed models
  150. Logistic Regression - A Practical Question
  151. Reporting ANOVA Results
  152. Derivation of moments of a probability distribution
  153. Fractional moments and higher moments (>4th)
  154. better clustering
  155. Rejection region
  156. Comparing multi-choice survey results
  157. Schoenfeld residuals
  158. Question about small sample difference between two means.
  159. Mulivariate output vs within-subjects output
  160. Hypothesis testing
  161. Fixed Effect and Random Effect
  162. How to fit a normal distribution to truncated data in WinBugs
  163. Hypothesis Testing including Dummy Variable
  164. Scaling a range of numbers between -1 and 1
  165. SED error bar for main effect with 3 levels
  166. F and T-Statistics
  167. ANOVA table
  168. ANOVAs with different cell sizes
  169. Small but randomly assigned sample in experimental study
  170. is this answer right?
  171. Smoothing algorithm for times series and slope measurement
  172. sample size for hypothesis
  173. Linear Regression
  174. how to interpretate this correlogram?
  175. Mean of residuals = 0
  176. Need advices and explanation
  177. Transform data or non-parametric test of association?
  178. Wilcoxon Signed Ranks Test-reporting sig. values
  179. Multivariate Gaussian Distributions
  180. Is dummy exogenous variable?
  181. ANOVA v t-test
  182. Sample Size
  183. Need a meaningful way to describe heavily-skewed numbers for 50 states
  184. Uneven sample size - need stats
  185. Correlation in subsamples and whole sample
  186. Univariate GLM?
  187. Manova v's Profile Analysis
  188. Repeated measure analysis using SAS (crossover design)
  189. covariance matrix
  190. Heterogeneity of variances in two factor ANOVA
  191. bonferroni
  192. Linear regression without intercept
  193. comparing GPS/barometer accuracies
  194. Post Hoc test MANOVA in STATA
  195. small pre-post study
  196. Linear Regression Models (1)
  197. Linear Regression Models (2)
  198. Linear Regression Models (3)
  199. sample size
  200. population standard deviation
  201. binomial distribuion problem
  202. should I worry about the time effect?
  203. Difference between Sensitivity and Statistical Power?
  204. regression P value and odds ratios
  205. Stat significance in image intensities
  206. Which test?
  207. Statistics - Hypothesis
  208. Statistics 350 Final Studying Help!
  209. Determining statistical significance when analysing time series
  210. Transect sampling
  211. help please ASAP!
  212. Variance of a difference
  213. Help needed!! How do I compare ethnicity rates?
  214. basic stat question
  215. SPSS for ANOVA testing
  216. Quantile-Quantile normalization
  217. non-parametric 95%-ile calculation
  218. test statistic?
  219. Please help me!
  220. Is this significant?
  221. fill in the blanks please
  222. interpretation of profile plot?
  223. How to regress actual data towards projected data.
  224. Stats help: t-tests
  225. What if the assumptions of ANOVA aren't met...
  226. Principal Components Analysis: data transformation prior to analysis???
  227. Estimator Qs
  228. type I error rate in multiple overlapping interaction ANOVAs, missing data
  229. MLE of 1/theta
  230. Var(x + c)
  231. long term monitoring design
  232. Transformations and Composite Variables
  233. cox proportional hazard
  234. estimating ratio of 2 dependent variables
  235. Need help with the discriminant analysis in SPSS
  236. MLE problem, linear regression model
  237. Which Non-Parametric Test is appropriate for this Example?
  238. sample size for likert scale test
  239. Formula for Confidence Interval
  240. Multinomial Logit Regression - sets
  241. log-transforming data VS non-parametric ANOVA?
  242. Fisher's Z Transformation
  243. Homework Difficulties
  244. Calculating statistical power?
  245. Analysing pain score data
  246. Setting limits for "Random Uncertainty"
  247. to use or not to use weights in factor and cluster analysis
  248. Log Normal Mean Estimators
  249. ANOVA or repeated Measures ANOVA?
  250. Data Gathering Question