View Full Version : Statistics
- Help
- ANOVA question
- Help with Time series (Calendar Anomalies)
- Anova table
- interpreting ACF and PACF
- bootstrapping
- Logistic regression: poorly distributed observations. What are the problems?
- logistic regression?
- Curve Fitting / Regression
- Toxicology/Genetics Question - ideas please?
- Shaprio-Wilk test problem
- Test if Point (X,Y) lies on the curve f(x).
- Variation on T-test equation
- [ is it correct ? ] Yes or No
- Comparing correlations
- urgent help required... please....
- changing two-tailed to one-tailed results...
- 2 short questions
- Intervals
- Help with SPSS output interpretation: UNIANOVA
- help with correlations between variables
- Z-scores for two likert scales?
- z-scores
- Order statistics?
- Help with survey Statistics
- sampling distribution t
- Comparing Mean Differences Across Time and Another Variable Simultaneously
- Elementary statistics
- heteroskedasticity/weighted regression
- intepreting (square root) transformed variables
- Help: contingent ranking, sample size and random
- Beta random variable to Normal random variable
- Probability question ..pls helpppp
- What would be better than sorting by "Average Star Rating" ?
- Expectation of reciprocal of a Normal Distribution
- Average from uneven ranges
- Expected mean help
- What method should I use? Regression
- Statistical Testing for Prototype Designs
- confidence interval
- Need help!
- Stat101 expected value
- Stat101 y-intercept of regression line
- Discriminant Function Analysis Prior Probabilities
- sigma level
- Demographic Data Comparison
- Stat101 Standard Deviation of sample mean
- Stat101 95% Confidence Interval
- what type of anova should i use please?
- STAT101 Scatterplot quiz. Just need verification
- Sig in Logistis Regression
- test on sunday - help
- Paired and unpaired participants
- Just Two Samples
- Regarding Binomial in non-parametric testing
- Multiple T Tests type 1 error
- Chi Square Help!
- One-Way ANOVA and Independent-Samples t-tests
- Estimating a trend line
- Standard Deviation or Average Rate of Return
- Log transformation
- is there a method for this?
- categorial variable for a binary outcome
- mean time for an random event to occur?
- Not a t-test but a....
- Checking for serial correlation in a binary series
- Trend lines and median values
- Was this data manipulated?
- Population Estimates of Market Segments
- correlation easy one (I think)
- Paremetric vs non-parametric inferences
- within subjects correlation
- Multiple equations, one set of data
- density function
- moderator? mediator? confounder?
- New to stats. Need help.
- Stats and Design Help - Have I got this completely wrong?
- probability problem, randem sample...
- Convert z-score to t-score?
- Always able to assume normality if sample size >= 31
- mathematical statistics
- Assumption when using the mean and median
- KW for 3 groups vs group pairs z-Test
- [need help] Transformation for skewed distribution
- ANOVA 2x6 Question
- measuring the reliability of an estimate
- Confused over Semantics
- Significant difference with Kruskal-Wallis despite medians being the same
- Looking for Help with t-tests for USAF Report
- I have no idea what 9.3(a)(b) means!
- Help!
- question on cox/stuart trend test
- HLM Question
- A big problem for smart people
- Needing some correlation quick advice
- Statistics + probability questions
- Ancova
- Pattern of Histogram
- Interpreting Normality
- two way ancova problem
- Choosing strata for weighted frequency
- two-way Ancova df
- Help, please. I'm not sure the question provided enough info to solve.
- Trying to analyze differences within 2 groups... help
- best way to show increase
- Logit Regression Probabilities as independednt variables in OLS
- Quantiative comparison of two distributions
- Parametric or nonparametric tests?
- Q-Q Plot for normal Distribution?
- Paired T Test Assumptions
- Type 1 error
- derive R squared
- Multivariate Analysis : error terms
- Within-sample variance smaller than between sample variance?
- Theil U statIstic
- Interpreting ANCOVAS
- RPD Acceptance
- Regression Equation
- hello
- On the p chart
- use the ASTM C-15 chart
- calculate percentage slope regression
- Arima
- convert 2x2 mixed to within subjects design
- Mgf
- ANOVA Stuff...
- Help with correcting spatial bias and sampling effort
- First and second order model analysis
- Standard Error Question!
- two sample t test
- significance level
- Central Limit Theorem!
- Sample size determination using t distribution
- McNemar test: are my reviewers bone-headed or have I misunderstood?
- Is y a function of x or abs(x) - how to test
- Confidence intervals vs. t-test
- Question about summation and expected value?
- Help to grasp Krustal-Wallis Results
- ANCOVA Help
- Show that s^2 is an unbiased estimator for sigma^2
- class width/ lower/upper boundry?
- Which test should I use?
- Skewness of independent variables
- When SD is calculated from SE
- Comparing scattered data
- 2 x 3 Chi Square?
- Mediation / Regression
- Sphericity test results for repeated measures ANOVA
- analyzing columns of data
- Median of grouped data (without formula)
- Deriving least squares estimates for 2 regression lines with common slope
- Indentifying Statistic
- Need some help with Identifying Class width and Mode
- MGF of lognormal distribution
- Find area under a normal distribution using gamma function
- Estimating the end of a sequence
- Neural networks
- problem about non-random samples
- SPSS help: 1-way repeated measures ANCOVA
- Community Attitudes Towards Mentally Ill (Taylor & Dear,1981)
- Quick Q on Fixed vs. Random effects
- MLE - maximum likelihood estimation
- T-Distribution
- newbie requiring help please :)
- Question having to do with normal distributions
- Will it rain?
- Normal distribution
- confidence interval for total weight.
- Wald joint test for differences between models
- descriptive statistics, easy question
- Help needed with regression
- Classical Seasonal Decomposition
- Z-Scores & The Motels
- Percentiles & Phone Calls
- simple type 1 error question
- what are appropriate test for discrete analysis
- Repetitions in G*Power
- analyzing columns of data follow up
- analyzing percentages
- Determining sample size
- More determining sample size
- Standard Density curve question
- Chi squared biased when applied to uneven nominal distributions?
- rejection region and p-value help
- For experts: About Mann Kendall
- Need help with ANOVA
- Pooled cross-section time-series model
- Repeated measures or split-plot... built the anova Model
- Confidence interval confusion
- Homoscedasticity / Homogenity of variance
- Non-Linear variables
- Geometric CV
- Estimating gene flow F values and Nm value
- sample size
- Really simple hypothesis testing question
- Techniques for identifying/learning routes from GPS Data
- Hypothesis testing
- Power
- Sample variance
- simple continuous random variable question
- skewed distribution - bias?
- Simple statistics
- Power and sample size for a paired t test
- Data Analysis
- Determining if a distribution is normal
- Calculating Standard Error (using n & pi)
- analyzing percentages
- analyzing columns of data
- Dunnett test
- Continuous random variable question
- Probability (Problem)
- Non-parametric testing problem
- Need stronger correlation formula.
- Normality -please help
- Question: PLus or Minus 25%, 82% of the time??
- multivariate statistics ; compute variance
- F-test : What happens if your dgf is too big ?
- Statistics Text
- Regression Model
- Determining a Winner
- Normalizing data
- sampling in ANOVA
- A simple problem, maybe?
- Need help with this one.
- Question about unbiased standard deviation
- statistics problem
- equivalence of variance - chi test
- Logistic regression - Binary variable with 'unknown' and nulls
- little help?
- Statistical significance help
- P-Value
- Importance label
- Repeated, replicated measures
- Simple problems
- What Stastical Method to Use - Please Help!
- T-value
- ANCOVA - Please Help!
- Mean and Standard Deviation Help
- Conditional Distributions
- comparing variance across data sets
- Efficiency of an estimator (truncated Poisson)
- Normal distribution and Z scores
- Help with distribution!
- Nominal - Interval and Ordinal - Interval analyses
- Chi square or Difference between two means?
- simple linear regression problem
- I need some Help please!
- Hypothesis Testing Help
- function to balance numerator & denominator
- Calculate the sample size
Powered by vBulletin™ Version 4.1.3 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.