ConfidenceInterval (Apache Commons Math 4.0-beta1)

java.lang.Object
- org.apache.commons.math4.legacy.stat.interval.ConfidenceInterval

```
public class ConfidenceInterval
extends Object
```
Represents an interval estimate of a population parameter.

Since:

3.3

Constructor Summary

Constructors
Constructor	Description
`ConfidenceInterval(double lowerBound, double upperBound, double confidenceLevel)`	Create a confidence interval with the given bounds and confidence level.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getConfidenceLevel()`
`double`	`getLowerBound()`
`double`	`getUpperBound()`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ConfidenceInterval
```
public ConfidenceInterval(double lowerBound,
                          double upperBound,
                          double confidenceLevel)
```
    Create a confidence interval with the given bounds and confidence level.
    Preconditions:
    
    lower must be strictly less than upper
    
    confidenceLevel must be strictly between 0 and 1 (exclusive)
    Parameters:
    
    lowerBound - lower endpoint of the interval
    
    upperBound - upper endpoint of the interval
    
    confidenceLevel - coverage probability
    
    Throws:
    
    MathIllegalArgumentException - if the preconditions are not met
- Method Detail
  - getLowerBound
```
public double getLowerBound()
```
    Returns:
    
    the lower endpoint of the interval
  - getUpperBound
```
public double getUpperBound()
```
    Returns:
    
    the upper endpoint of the interval
  - getConfidenceLevel
```
public double getConfidenceLevel()
```
    Returns:
    
    the asserted probability that the interval contains the population parameter
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
    
    Returns:
    
    String representation of the confidence interval