Hypothesis Tests in R
Hypothesis Tests in R
How to Calculate Pooled Standard Deviation in R
A pooled standard deviation is simply a weighted average of standard deviations from two or more independent groups.
In statistics it appears most often in...
Hypothesis Tests in R
How to Calculate Standard Deviation of Columns in R
You can use the following basic syntax to calculate the standard deviation of columns in R:
#calculate standard deviation of one column
sd(df$col1)
#calculate standard deviation of...
Hypothesis Tests in R
The Complete Guide: Hypothesis Testing in R
A hypothesis test is a formal statistical test we use to reject or fail to reject some statistical hypothesis.
This tutorial explains how to perform...
Hypothesis Tests in R
How to Calculate Weighted Standard Deviation in R
The weighted standard deviation is a useful way to measure the dispersion of values in a dataset when some values in the dataset have...
Hypothesis Tests in R
How to Calculate Pooled Variance in R
In statistics, pooled variance refers to the average of two or more group variances.
We use the word “pooled” to indicate that we’re “pooling” two...
Hypothesis Tests in R
How to Perform a Log Rank Test in R
A log rank test is the most common way to compare survival curves between two groups.
This test uses the following hypotheses:
H0: There is no...
Hypothesis Tests in R
How to Perform Bartlett’s Test in R (Step-by-Step)
Bartlett’s test is a statistical test that is used to determine whether or not the variances between several groups are equal.
Many statistical tests (like...
Subscribe
- Never miss a story with notifications
- Gain full access to our premium content
- Browse free from up to 5 devices at once
Must read