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. Confidence Interval
  2. Kaplan–Meier plot: What statistical tests to perform?
  3. Monte-Carlo, Delta, bootstrap & likelihood ratio methods for calculating CIs
  4. Independent t test vs Dependent t test - pleeeeeease help
  5. Interpretation of significant nested term in linear mixed model
  6. construct a confidence interval
  7. Goodness of fit
  8. Project help - Justification
  9. Hypothesis Testing question!
  10. Question on constructing 99% confidence interval for true mean
  11. Statistics Terminology.
  12. Robust correlation in R
  13. categorical variable question
  14. Relevant statistical test
  15. Failure time using weibull dist
  16. Maybe a stupid question but would like some clarification - Sample size?
  17. completely lost!
  18. can someone please help me???
  19. Marginal and Conditional Probability Distribution Question - An easy one I'm sure.
  20. hw: calculating n for confidence interval and error
  21. Calculate the variance from CV
  22. help: combining distributions
  23. Loss of Power when analysing Groups within Variables
  24. Metropolis Hastings
  25. My stats just don't work!
  26. reliability
  27. Sampling Distribution don't makes sense...
  28. When to reject the null?!
  29. Control Limit
  30. Extrapolating from a small size
  31. p-value (linear regression in R)
  32. statistic books
  33. Model Selection Help
  34. Bayes Factor
  35. convert a geometric Sd to arithmatic given only the geo SD statistic.
  36. Distribution of a Transformed Variable: Help.
  37. Multiple regression, multicollinearity problem
  38. Chi square help
  39. ANOVA, General Linear Model, Repeated Measures
  40. Please help me with moving average representations problem
  41. T-starts on alpha+beta
  42. Please help deriving reduce form parameters
  43. SD for mean ratio and difference
  44. sample size for validation studies
  45. Absolutely lost!! please help!!
  46. Interpretation of disappearing main effect when including interaction term
  47. Normal Distiribution Question
  48. Basic Statistics Questions - Analysis
  49. Significance Test for Nomial Data
  50. Chi Squared test for association
  51. correlation/stats help please!!
  52. Bootstrapping
  53. Need to know which test to use. Please help ASAP!
  54. Hypothesis Testing Problem
  55. 2-Sample or Matched Pairs Test??
  56. Metropolis Within A Gibbs
  57. SRS question
  58. Need help in measuring the competition on a scale of 1-10
  59. Stderr from non-normal data
  60. Bonferronicorrection adjusted for correlation
  61. Paired T-test
  62. mean
  63. ANOVA 2 factor with rep - each sample must contain same number of rows
  64. Paired t - test experiment
  65. Independent test
  66. Box's test in MANOVA
  67. Normality, Repeated Measures, CLT
  68. Dynamic regression - seasonal model for residuals
  69. Difference between the population and sample
  70. How to deal lab values as "<0.3" or ">100" in statistical analysis
  71. How to "Frame Data" and what "Test statistics" to use?
  72. Correlation question
  73. Standard Deviation of the Mean vs Standard Error of the Mean
  74. Expected Value of AB
  75. Help Regarding Standard Deviation in SPSS
  76. A pretty basic question about comparing two samples, looking for guidance.
  77. Alternative hypothesis.
  78. Hypothesis Test between 2 means
  79. Normality Tests
  80. The best way to choose weights for parameters that contribute in scoring items
  81. Tests for data with detection limit
  82. Formula for Identifying Related Pairs
  83. A reference for those who have censored data (below detectable limits)
  84. Expected value of residuals from fitting model?
  85. Hypothesis formulation
  86. testing the evenness of regional distribution
  87. Assumptions for principal component analysis?
  88. I really need help with this math problem...
  89. How do we obtain the frequencies (fi) from a table that shows only the percentages?
  90. Need help designing ranking system
  91. Normal distribution & Kurtosis
  92. OLS slope parameter variance in AR(1) and heteroskedastic errors
  93. balanced and unbalanced design
  94. How to use a Distance Matrix as an Independent Variable?
  95. Sample size big enough for z-approximation?
  96. Parametric vs. non-parametric test.
  97. Power Analysis for Factorial ANOVA Design?
  98. Confidence Interval for the Difference Between Two Means
  99. Change score questions
  100. ANOVA test results
  101. How do i say significant?
  102. p-value v sample size
  103. Macro to calculate Regression between variables.
  104. Macro to Cal regression between two variables (Mini__Tab)
  105. MANOVA: Can dependent variables correlate each other?
  106. Confidence Interval One-tailed Test
  107. Comparing standard deviations of different means
  108. significant difference between three proportion??how??
  109. stuck on hypothesis question
  110. What can be concluded from different medians?
  111. Need help about binary logistic regression
  112. Multivariable variance problem
  113. some help with this null/alternative hypothesis. i tried & my professor says im wrong
  114. T test and ANOVA
  115. compare correlations and variance for ordinal data
  116. Mean correlation coefficient and its standard error
  117. Minimum group size for weighting?
  118. cluster analysis....practical example?
  119. Concatenating Vector of Strings in R
  120. reading MAT files in R
  121. Standard Error; A fairly simple question
  122. how to proxy a variable? (geometrically declining weighted moving average)
  123. anova 3 way sum of square type - mtalb
  124. Easy question about covariance / beta
  125. Confusing terms.
  126. Data collection and hypotheses?
  127. Analyse data with help of statistical techniques
  128. need help to estimate weights in order to proxy a variable in eviews 5
  129. Are university grades an ordinal variable?
  130. Running an ANOVA with Excel-HElP...
  131. For Coca Cola project-Need help with SPSS
  132. Yes/No data: what measure to use
  133. Selecting different time periods for Panel Data in Stata 11.1 for Windows
  134. pls pls pls help! easy q about correlation!
  135. What formula do i use??? Pls help
  136. crosss ectional design or correlational research design?
  137. Confidence Intervals - How to determine for 5-star ratings?
  138. Statistics with R - absolute beginner
  139. Factor Analysis and Rasch Model - Unidimensionality
  140. Need desperate help on a dataset, please help me staticians.?
  141. Urgent indicator semivariogram problem
  142. Sampling: problem!
  143. Multiple response cross tabulated with one response
  144. The question regarding basics of naive Bayes classificator
  145. Simplifying my results section
  146. Autocorrelation in the residuals
  147. Partial Correlation - Help for a beginner
  148. Confidence intervals for continuous vs. dichotomous variables: what's the difference?
  149. Standard Deviation with values of zero in population
  150. Regression Help
  151. On Assumptions of Regression Analysis
  152. Autocorrelation Function: How to interpret an acf plot?
  153. Assumption of Normality in MANOVA
  154. Help with a problem on confidence interval for means
  155. hosmer lemeshow goodness of fit statistic
  156. Scheffe Test
  157. AR(p) impulse response function and confidence intervals
  158. Distribution of certain ratio of quadratic forms, chi-square?
  159. One-way ANOVA help
  160. Critical value in excel
  161. Relevance of correlation when two variables are linked
  162. Examples of "games" with Gaussian outcomes?
  163. p-value for any degree of freedom
  164. How to rank (overall) correlation of variables within a correlation matrix
  165. help with my statistics project!
  166. Hypothesis testing
  167. Two Pre and Post tests for two matched groups?
  168. Analog to Binomial test without number of trials and number of successes
  169. Help needed on interpreting result of 2 Way ANOVA
  170. regression BY STATA
  171. Interpretation of an Interaction Variable in a Quadratic Regression
  172. Question Help ASAP!
  173. expected value proof
  174. Minimum sample size for fish size
  175. Should I transform my response data (count data)? Impact on subsequent analyses?
  176. Bias Follow Up to Expected Value Proof
  177. Is the t test the right one for me?
  178. Finding Principal Component
  179. Relavance of confidence interval in Relative Risk
  180. Errors and Standard Deviation
  181. Planned comparisons
  182. Sampling Distribution
  183. Categorical Analysis - Correspondence Analysis
  184. How to generalization results of sample ?
  185. What test to use?
  186. the right t-test?
  187. confidence intervals logistic regression
  188. Probability of a battery life
  189. Oneway ANOVA vs. T-test
  190. How to measure the responses from two different groups?
  191. Comparing coefficients with different dependent variables
  192. Taking into account measurement error in CFA: What do we gain?
  193. Assigning weights to variables
  194. Elements of Statistical Learning: Exercises
  195. Help in analysis of likert scales and other data
  196. error of the ratio of means
  197. Comparing groups - in need of sugestions
  198. Calculating SSAxB or MSAxB, two-way crossed ANOVA
  199. how to check if data has the pareto distribution
  200. Ratio to 0
  201. What test to use?
  202. logist regression - standardized estimates
  203. z score or percentile rank?
  204. Reducing number of items in a scale
  205. about confidence level
  206. Estimate number of urns based on drawn balls
  207. Repeated measures with very many (40) measurements per subject
  208. Correlation between dichotomous and ordinal variables
  209. Problem with 90% Confidence Level
  210. Doing exploratory analyses and SEM with same data set
  211. Comparing Species Compositions between 2 Populations
  212. Confirmatory Factor Analysis: Appropriateness and interpretation
  213. Discontinuous independent variable (beyond dichotomous)
  214. Too many zeros in X-Squared
  215. Spatial distribution of points
  216. Equation/Formula for Critical Values Table
  217. What stats techniques to use?
  218. regression to the mean
  219. Qualitative and quantitative: wich index?
  220. estimation model
  221. math to compute width of gaussian PDF(x) given sigma & N values of random variable x
  222. Covariance
  223. minimal significance level
  224. Is this the right method to use?
  225. Chi Square?
  226. Enquiry - how to handle data entry errors in a spreadsheet
  227. Best way to apply tolerances
  228. What test to choose?
  229. Pre and Post Test
  230. Generalizability test
  231. Addition and multiplication rules?
  232. Cant figure simple calc.....
  233. effect size
  234. Is my variable count or measurement and what statistical model would be best?
  235. Creating a questionnaire based on items from other quesstionnaires
  236. New problem, how to analyze?
  237. Summariing ranking data
  238. Normalization of correlation coefficient
  239. Center effect
  240. Probably a really easy question for you guys
  241. standard deviation of average
  242. Confidence Level
  243. Which statistical test to use for compare differences?
  244. find which combination of variables have the highest correlation
  245. Simple wald wonder..
  246. Newbie Help
  247. Please check my calc and see what i am missing. Please I have been stuck for a week
  248. plotting a histogram
  249. Need some Help
  250. Would this Likert scale count as interval?