```
The following objects are masked _by_ .GlobalEnv:
algodon, fortaleza
```

Level | Mean | Standard deviation | n | Standard error |
---|---|---|---|---|

15% | 9.8 | 3.346640 | 5 | 1.4966630 |

20% | 15.4 | 3.130495 | 5 | 1.4000000 |

25% | 17.6 | 2.073644 | 5 | 0.9273618 |

30% | 21.6 | 2.607681 | 5 | 1.1661904 |

35% | 10.8 | 2.863564 | 5 | 1.2806248 |

The ratio of the largest group standard deviation to the smallest is 1.61

```
This graph has 5 boxplots printed vertically
with the title:
"" appears on the x-axis.
"" appears on the y-axis.
Tick marks for the y-axis are at: 10, 15, 20, and 25
Group 15% has 5 values.
There are no outliers marked for this group
The whiskers extend to 7 and 15 from the ends of the box,
which are at 7 and 11
The median, 9 is 50 % from the lower end of the box to the upper end.
The upper whisker is Inf times the length of the lower whisker.
Group 20% has 5 values.
There are no outliers marked for this group
The whiskers extend to 12 and 18 from the ends of the box,
which are at 12 and 18
The median, 17 is 83 % from the lower end of the box to the upper end.
The upper whisker is NaN times the length of the lower whisker.
Group 25% has 5 values.
An outlier is marked at: 14
The whiskers extend to 18 and 19 from the ends of the box,
which are at 18 and 19
The median, 18 is 0 % from the lower end of the box to the upper end.
The upper whisker is NaN times the length of the lower whisker.
Group 30% has 5 values.
There are no outliers marked for this group
The whiskers extend to 19 and 25 from the ends of the box,
which are at 19 and 23
The median, 22 is 75 % from the lower end of the box to the upper end.
The upper whisker is Inf times the length of the lower whisker.
Group 35% has 5 values.
An outlier is marked at: 7 15
The whiskers extend to 10 and 11 from the ends of the box,
which are at 10 and 11
The median, 11 is 100 % from the lower end of the box to the upper end.
The upper whisker is NaN times the length of the lower whisker.
```

```
Warning in dotplot.formula(fortaleza ~ algodon, xlab = "Fortaleza", ylab =
"Algodon"): The dotplot command is a wrapper for stripchart, and is not a base R
function.
```

```
This graph has 25 dotplots printed horizontally
with the title:
"" appears on the x-axis.
"" appears on the y-axis.
Tick marks for the x-axis are at: 10, 15, 20, and 25
the data that range from 7 to 25 has been broken into 6 bins.
The counts are:
15%: 1 0 0 0 0 0
20%: 0 1 0 0 0 0
25%: 0 0 1 0 0 0
30%: 0 0 0 1 0 0
35%: 1 0 0 0 0 0
NA: 1 0 0 0 0 0
NA: 0 1 0 0 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 1 0 0
NA: 1 0 0 0 0 0
NA: 1 0 0 0 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 0 1 0
NA: 0 1 0 0 0 0
NA: 0 1 0 0 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 0 0 1
NA: 0 1 0 0 0 0
NA: 0 0 1 0 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 1 0 0
NA: 0 0 0 0 0 1
NA: 0 0 1 0 0 0
```

```
The p value for algodon is 0
The ratios of the group standard deviations to the overall standard deviation
(groups ordered by increasing mean) are:
1.18 1.1 0.73 0.92 1.01
```

```
Df Sum Sq Mean Sq F value Pr(>F)
algodon 4 475.8 118.94 14.76 9.13e-06 ***
Residuals 20 161.2 8.06
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
```

```
Bartlett test of homogeneity of variances
data: fortaleza by algodon
Bartlett's K-squared = 0.93309, df = 4, p-value = 0.9198
```

```
Fligner-Killeen test of homogeneity of variances
data: fortaleza by algodon
Fligner-Killeen:med chi-squared = 1.7265, df = 4, p-value = 0.7859
```