Statistics

Statistics course and homework discussion. Elementary statistics.
TheEcologist
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Forum Guidelines: Smart posting behavior pays off
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1
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211,364
Dason
quark
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We only provide homework help to those who show effort
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0
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75,644
quark
V
I have a Mean and Standard Deviation. If I multiply the Mean by a number (non-constant), do I have to multiply the Standard Deviation by that number?
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4
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104
noetsi
L
Statistical Football Model
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0
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58
LeeBalto
M
Descriptively nterpreting data output
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2
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106
katxt
N
it's been a while ... help choosing correct test
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9
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190
Karabiner
M
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SPSS free trial on the same device
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1
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64
Dason
T
Normal values for a new test
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0
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66
Tam13
D
Type II error textbook question
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5
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126
djwatson
AngleWyrm
Discrete normal distributions
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5
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186
StatsSolver
Buckeye
Reconcile differences in sample size calculation for two proportions?
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12
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176
fed2
B
Determination of optimal number of clusters (stpping rule) with similarity measure (Jaccard coefficient)
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2
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108
Miner
J
Sufficient statistic for normal distribution (not iid)
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1
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85
fed2
P
[Q] How to analyze a variable that can be both quantitative and qualitative?
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2
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172
gw1
O
What is the most appropriate statistical procedure?
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8
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201
gw1
J
How to calculate and what model should I use?
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9
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816
Robbbbbbb
N
Is this a regression?
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2
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188
katxt
C
Comparing quantiles from one sample
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4
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116
hlsmith
J
Constant hazard ratio and relative risk
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1
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95
hlsmith
T
buy spss statistic basic software with a perpetual license
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0
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77
Tojo Patrick
F
Fisher's exact test for this table?
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1
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109
obh
U
Hypothesis testing for 2 sample proportion
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4
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157
katxt
J
Calculating missing mean and std deviations of subset
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18
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445
fed2
S
Normality test in data with multiple treatments
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1
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119
katxt
L
Design of Experiments with existing data
2
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26
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496
lorenzovonmt
R
Determining Chi-squared test of independence
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2
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131
realtyblazer
D
Determining sample type
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0
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97
Ducks
A
DISTANCE BETWEEN TWO POINTS
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0
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134
angsil
J
z-test assumptions
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0
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88
jool06
Z
question about correlation and regression
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1
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130
hlsmith
O
How do I know if I can use other researcher's measurements or scales for free?
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3
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178
gw1
StrangeCharm
Which approach to evaluate small spatial variations in temperature?
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14
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315
katxt
A
Comparing the means of two independent populations
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3
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118
AKguy
S
Effect of larger variance in covariate (or: getting closer to a normal distribution) on result of ANCOVA
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0
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150
SaffronYellow
O
A question about SAS power analysis !
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5
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203
oscarwukaka
A
Determining Effect size for Quade Test
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0
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119
Annika
Y
Prediction of label by numerical variables
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1
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115
hlsmith
D
Excel formula for the inverse Pearson IV distribution?
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9
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6,626
katxt
hlsmith
Linear vs. Non-Linear Functions
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3
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168
spunky
D
Finding a set of 3/4/5/6 uncorrelated variables
2
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22
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419
gw1
W
Using logistic regression and z scores to predict the impact of the difference in two variables on a third
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2
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182
wildy_stats
A
Forecasting analysis
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3
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260
hlsmith
K
Random sample question.
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8
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163
Dason
P
Calculating model (Analytically)
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2
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147
fed2
T
Ratio of number of cases to control
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7
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159
hlsmith
R
Is the difference between two groups bigger, then x2 value bigger and p value smaller?
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2
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158
hlsmith
D
Beginners Questions
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2
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172
mahi2pal
T
Living relatives
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1
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103
GretaGarbo
C
Calculating t-test and correlation/importance of feature with aggregated dataset
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4
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277
statswork
P
Weighing the chronology of physical manuscripts using chi squared
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7
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213
katxt
O
Two Questions about quantitative study and level of measurement .
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1
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133
hlsmith
R
A basic question about chi-square test
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14
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323
rkm567
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