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vasili111

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22 Questions

Votes Activity Newest Views
4
15
votes
2
answers
4k
views

If “Standard error” and “Confidence intervals” measure precision of measurement, then what are the measurements of accuracy?

confidence-interval standard-error measurement-error accuracy
Jul 6 '19 at 0:48 vasili111 571
2
6
votes
2
answers
47k
views

How can I calculate t-score without knowing true population mean?

self-study inference standard-error
Mar 2 '18 at 17:14 gung - Reinstate Monica 125k
 
5
votes
2
answers
4k
views

Can the discrete variable be a negative number?

distributions discrete-data
Mar 28 '19 at 23:36 Sycorax♦ 64.6k
 
3
votes
1
answer
56
views

How do I interpret generalized linear regression with continues independent variable with Gaussian family and log link

regression multiple-regression generalized-linear-model link-function
Apr 5 at 17:34 RyanFrost 402
1
3
votes
0
answers
193
views

How many different approaches (or schools, or methods) is in statistics? [closed]

probability self-study bayesian mathematical-statistics frequentist
Jun 3 '14 at 12:16 vasili111 571
 
2
votes
1
answer
95
views

Ratio as independent variable for logistic regression

regression logistic odds-ratio ratio
Apr 5 at 0:32 kjetil b halvorsen♦ 51.9k
 
2
votes
1
answer
67
views

Which test(s) are alternative to Mann-Whitney test for non-parametric continues data when symmetry assumption is violated

nonparametric wilcoxon-mann-whitney symmetry
Jan 15 '20 at 14:26 Lewian 4,238
 
1
vote
1
answer
14
views

When it is better to drop variable rather than impute continues or recategorize missing in categorical in predictive modeling?

predictive-models prediction missing-data
Sep 6 at 21:13 Tinu 433
1
1
vote
1
answer
254
views

Can I use partial eta and/or partial omega squared for effect size estimation of each independent variable in linear mixed model regression?

r mixed-model effect-size
Apr 17 at 8:19 oszkar 714
 
1
vote
1
answer
26
views

Sign test for two-sample paired data interpretation and median differences

r median
Jan 1 '20 at 1:38 Glen_b 244k
 
1
vote
0
answers
148
views

In a regression model fitting, should we should check for the normality of the response at each level of X, but not collectively for X?

regression linear-model linear
Nov 7 '19 at 16:25 vasili111 571
 
1
vote
2
answers
1k
views

Why it is important to make survey design object (svydesign function in R with id, strata, weights, fpc) from raw data and after clean data in object?

r survey survey-sampling survey-weights
Jun 26 '19 at 20:12 Thomas Lumley 12.3k
 
0
votes
1
answer
29
views

Is it possible to to have more than 2 groups for biased coin randomization? If no, is there any modifications supporting multiple groups?

random-variable random-allocation random randomized-tests randomized-algorithms
Jul 1 at 12:25 psboonstra 968
 
0
votes
0
answers
32
views

How do I interpret RMSE in layman words? [duplicate]

predictive-models error intuition rms
Apr 30 at 7:51 Stephan Kolassa 77.1k
 
0
votes
1
answer
1k
views

How do I interpret mean absolute error (MAE) or mean absolute percentage error (MAPE) in layman words?

predictive-models error intuition mape mae
Apr 30 at 7:50 Stephan Kolassa 77.1k
1
0
votes
1
answer
65
views

Is the r effect size that is used with Wilcoxon sing rank test also good to use with sign test

r effect-size wilcoxon-signed-rank
Dec 31 '19 at 23:11 Sal Mangiafico 6,162
1
0
votes
3
answers
757
views

How can I check if nominal and ordinal data is normally distributed (for z-test of proportions)

categorical-data proportion normality-assumption z-test
Nov 6 '19 at 21:20 Demetri Pananos 13.8k
 
0
votes
1
answer
151
views

Which study design of R survey package to use with NAMCS dataset?

r stata survey sas
Jun 27 '19 at 15:39 Thomas Lumley 12.3k
 
0
votes
1
answer
37
views

Standard normal distribution vs Unit normal distribution

normal-distribution descriptive-statistics terminology z-score
May 4 '19 at 17:46 kjetil b halvorsen♦ 51.9k
 
0
votes
1
answer
44
views

How exactly can I get sampling distribution of means for calculation of standard error?

sampling mean standard-error sample population
Apr 16 '19 at 8:01 vasili111 571
 
-1
votes
1
answer
445
views

Calculation vs Estimation. What is the difference and when to use each of them?

estimation terminology
Jul 4 '19 at 21:47 vasili111 571
 
-1
votes
1
answer
227
views

Hypothesis Testing terminology [duplicate]

hypothesis-testing terminology
Jul 9 '14 at 11:21 Pio 254
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