Asked by The Gibson Family on May 01, 2024
Verified
When computing a correlation coefficient,if you have 27 degrees of freedom,your sample size must be ______.
A) 25
B) 27
C) 29
D) 26
Degrees of Freedom
The count of distinct values or quantities that can be allocated to a statistical distribution.
Sample Size
The number of observations or data points that constitute a sample from a population.
- Understand the concept of degrees of freedom in statistical analysis.
Verified Answer
ZK
Zybrea KnightMay 03, 2024
Final Answer :
C
Explanation :
In order to compute a correlation coefficient, you need to have two sets of data with corresponding values. Therefore, the sample size for correlation should include at least 2 data values. The formula for degrees of freedom in correlation is (n-2). Substituting 27 for (n-2), we can solve for n which equals 29. Therefore, the sample size must be 29.
Learning Objectives
- Understand the concept of degrees of freedom in statistical analysis.