```r
var.test(Site1,Site3)
```

```
## 
## 	F test to compare two variances
## 
## data:  Site1 and Site3
## F = 0.26543, num df = 25, denom df = 7, p-value = 0.01276
## alternative hypothesis: true ratio of variances is not equal to 1
## 95 percent confidence interval:
##  0.06026177 0.75587865
## sample estimates:
## ratio of variances 
##          0.2654259
```

```r
var.test(Site1,Site2)
```

```
## 
## 	F test to compare two variances
## 
## data:  Site1 and Site2
## F = 0.78364, num df = 25, denom df = 24, p-value = 0.5487
## alternative hypothesis: true ratio of variances is not equal to 1
## 95 percent confidence interval:
##  0.3471411 1.7570958
## sample estimates:
## ratio of variances 
##          0.7836404
```