UNISTAT - the ultimate Excel statistics add-in

Multiple Comparisons in Excel with Unistat

The Unistat statistics add-in extends Excel with Multiple Comparisons capabilities.

Further documentation is available at section 7.4.3 of the manual, Multiple Comparisons.

Sample output

Here we provide annotated example report output from the Unistat Excel statistics add-in for data analysis.

Multiple Comparisons

Student-Newman-Keuls

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000****
|
C 5-2.6000**
||
E 5 1.0000
|||
A 5 3.6000**
 ||
D 5 4.8000****
  |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 5.1610 4.2319 0.0123****
A - B 8.4000 2.6306 4.5159 3.9583 0.0218****
E - B 5.8000 2.6306 3.1181 3.5779 0.0947**
C - B 2.2000 2.6306 1.1827 2.9500 0.4129**
D - C 7.4000 2.6306 3.9783 3.9583 0.0486****
A - C 6.2000 2.6306 3.3331 3.5779 0.0707**
E - C 3.6000 2.6306 1.9354 2.9500 0.1863**
D - E 3.8000 2.6306 2.0429 3.5779 0.3380**
A - E 2.6000 2.6306 1.3978 2.9500 0.3348**
D - A 1.2000 2.6306 0.6451 2.9500 0.6532**

Homogeneous Subsets:
Group 1: B C E
Pooled mean-2.1333
95% Confidence Interval-4.3735 <> 0.1069
Group 2: C E A
Pooled mean 0.6667
95% Confidence Interval-1.5735 <> 2.9069
Group 3: E A D
Pooled mean 3.1333
95% Confidence Interval 0.8931 <> 5.3735
Between Homogeneous subsets:
Group 2 - Group 1
Difference 2.8000
95% Confidence Interval-0.3681 <> 5.9681
Group 3 - Group 2
Difference 2.4667
95% Confidence Interval-0.7014 <> 5.6348

Tukey-HSD

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000****
|
C 5-2.6000
||
E 5 1.0000
||
A 5 3.6000**
 |
D 5 4.8000**
 |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 5.1610 4.2319 0.0123 1.7283 17.4717**
A - B 8.4000 2.6306 4.5159 4.2319 0.0329 0.5283 16.2717**
E - B 5.8000 2.6306 3.1181 4.2319 0.2182-2.0717 13.6717
C - B 2.2000 2.6306 1.1827 4.2319 0.9161-5.6717 10.0717
D - C 7.4000 2.6306 3.9783 4.2319 0.0717-0.4717 15.2717
A - C 6.2000 2.6306 3.3331 4.2319 0.1685-1.6717 14.0717
E - C 3.6000 2.6306 1.9354 4.2319 0.6536-4.2717 11.4717
D - E 3.8000 2.6306 2.0429 4.2319 0.6077-4.0717 11.6717
A - E 2.6000 2.6306 1.3978 4.2319 0.8574-5.2717 10.4717
D - A 1.2000 2.6306 0.6451 4.2319 0.9904-6.6717 9.0717

Homogeneous Subsets:
Group 1: B C E
Pooled mean-2.1333
95% Confidence Interval-4.3735 <> 0.1069
Group 2: C E A D
Pooled mean 1.7000
95% Confidence Interval-0.2401 <> 3.6401
Between Homogeneous subsets:
Group 2 - Group 1
Difference 3.8333
95% Confidence Interval-0.4179 <> 8.0845

Tukey-B

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000****
|
C 5-2.6000
||
E 5 1.0000
||
A 5 3.6000**
 |
D 5 4.8000**
 |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 5.1610 4.2319 0.0123 1.7283 17.4717**
A - B 8.4000 2.6306 4.5159 4.0951 0.0218 0.5283 16.2717**
E - B 5.8000 2.6306 3.1181 3.9049 0.0947-2.0717 13.6717
C - B 2.2000 2.6306 1.1827 3.5909 0.4129-5.6717 10.0717
D - C 7.4000 2.6306 3.9783 4.0951 0.0486-0.4717 15.2717
A - C 6.2000 2.6306 3.3331 3.9049 0.0707-1.6717 14.0717
E - C 3.6000 2.6306 1.9354 3.5909 0.1863-4.2717 11.4717
D - E 3.8000 2.6306 2.0429 3.9049 0.3380-4.0717 11.6717
A - E 2.6000 2.6306 1.3978 3.5909 0.3348-5.2717 10.4717
D - A 1.2000 2.6306 0.6451 3.5909 0.6532-6.6717 9.0717

Homogeneous Subsets:
Group 1: B C E
Pooled mean-2.1333
95% Confidence Interval-4.3735 <> 0.1069
Group 2: C E A D
Pooled mean 1.7000
95% Confidence Interval-0.2401 <> 3.6401
Between Homogeneous subsets:
Group 2 - Group 1
Difference 3.8333
95% Confidence Interval 0.2260 <> 7.4407

Duncan

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000******
|
C 5-2.6000****
||
E 5 1.0000**
 ||
A 5 3.6000****
  |
D 5 4.8000****
  |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 5.1610 3.2558*****
A - B 8.4000 2.6306 4.5159 3.1960*****
E - B 5.8000 2.6306 3.1181 3.0938*****
C - B 2.2000 2.6306 1.1827 2.9453***
D - C 7.4000 2.6306 3.9783 3.1960*****
A - C 6.2000 2.6306 3.3331 3.0938*****
E - C 3.6000 2.6306 1.9354 2.9453***
D - E 3.8000 2.6306 2.0429 3.0938***
A - E 2.6000 2.6306 1.3978 2.9453***
D - A 1.2000 2.6306 0.6451 2.9453***

Homogeneous Subsets:
Group 1: B C
Pooled mean-3.7000
95% Confidence Interval-6.4437 <>-0.9563
Group 2: C E
Pooled mean-0.8000
95% Confidence Interval-3.5437 <> 1.9437
Group 3: E A D
Pooled mean 3.1333
95% Confidence Interval 0.8931 <> 5.3735

Scheffe

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000**
|
C 5-2.6000
||
E 5 1.0000
||
A 5 3.6000
||
D 5 4.8000**
 |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 3.6494 3.3859 0.0304 0.6931 18.5069**
A - B 8.4000 2.6306 3.1932 3.3859 0.0711-0.5069 17.3069
E - B 5.8000 2.6306 2.2048 3.3859 0.3355-3.1069 14.7069
C - B 2.2000 2.6306 0.8363 3.3859 0.9487-6.7069 11.1069
D - C 7.4000 2.6306 2.8131 3.3859 0.1368-1.5069 16.3069
A - C 6.2000 2.6306 2.3569 3.3859 0.2736-2.7069 15.1069
E - C 3.6000 2.6306 1.3685 3.3859 0.7584-5.3069 12.5069
D - E 3.8000 2.6306 1.4445 3.3859 0.7209-5.1069 12.7069
A - E 2.6000 2.6306 0.9884 3.3859 0.9098-6.3069 11.5069
D - A 1.2000 2.6306 0.4562 3.3859 0.9945-7.7069 10.1069

Homogeneous Subsets:
Group 1: B C E A
Pooled mean-0.7000
95% Confidence Interval-2.6401 <> 1.2401
Group 2: C E A D
Pooled mean 1.7000
95% Confidence Interval-0.2401 <> 3.6401
Between Homogeneous subsets:
Group 2 - Group 1
Difference 2.4000
95% Confidence Interval-2.0535 <> 6.8535

Least Significant Difference (LSD)

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000******
|
C 5-2.6000****
||
E 5 1.0000**
 ||
A 5 3.6000****
  |
D 5 4.8000****
  |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 3.6494 2.0860 0.0016 4.1127 15.0873**
A - B 8.4000 2.6306 3.1932 2.0860 0.0046 2.9127 13.8873**
E - B 5.8000 2.6306 2.2048 2.0860 0.0393 0.3127 11.2873**
C - B 2.2000 2.6306 0.8363 2.0860 0.4129-3.2873 7.6873
D - C 7.4000 2.6306 2.8131 2.0860 0.0107 1.9127 12.8873**
A - C 6.2000 2.6306 2.3569 2.0860 0.0287 0.7127 11.6873**
E - C 3.6000 2.6306 1.3685 2.0860 0.1863-1.8873 9.0873
D - E 3.8000 2.6306 1.4445 2.0860 0.1641-1.6873 9.2873
A - E 2.6000 2.6306 0.9884 2.0860 0.3348-2.8873 8.0873
D - A 1.2000 2.6306 0.4562 2.0860 0.6532-4.2873 6.6873

Homogeneous Subsets:
Group 1: B C
Pooled mean-3.7000
95% Confidence Interval-6.4437 <>-0.9563
Group 2: C E
Pooled mean-0.8000
95% Confidence Interval-3.5437 <> 1.9437
Group 3: E A D
Pooled mean 3.1333
95% Confidence Interval 0.8931 <> 5.3735

Bonferroni (Modified LSD)

For Coded Data, classified by Formulation
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanBCEAD
B 5-4.8000****
|
C 5-2.6000
||
E 5 1.0000
||
A 5 3.6000**
 |
D 5 4.8000**
 |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - B 9.6000 2.6306 3.6494 3.1534 0.0159 1.3047 17.8953**
A - B 8.4000 2.6306 3.1932 3.1534 0.0457 0.1047 16.6953**
E - B 5.8000 2.6306 2.2048 3.1534 0.3934-2.4953 14.0953
C - B 2.2000 2.6306 0.8363 3.1534 1.0000-6.0953 10.4953
D - C 7.4000 2.6306 2.8131 3.1534 0.1074-0.8953 15.6953
A - C 6.2000 2.6306 2.3569 3.1534 0.2873-2.0953 14.4953
E - C 3.6000 2.6306 1.3685 3.1534 1.0000-4.6953 11.8953
D - E 3.8000 2.6306 1.4445 3.1534 1.0000-4.4953 12.0953
A - E 2.6000 2.6306 0.9884 3.1534 1.0000-5.6953 10.8953
D - A 1.2000 2.6306 0.4562 3.1534 1.0000-7.0953 9.4953

Homogeneous Subsets:
Group 1: B C E
Pooled mean-2.1333
95% Confidence Interval-4.3735 <> 0.1069
Group 2: C E A D
Pooled mean 1.7000
95% Confidence Interval-0.2401 <> 3.6401

Dunnett

For Coded Data, classified by Formulation
Control Group: A, Two-Tailed Test
Mean Square Error: 17.3, Degrees of Freedom: 20
** denotes significantly different pairs. Vertical bars show homogeneous subsets.
A pairwise test result is significant if its q stat value is greater than the table q.

GroupCasesMeanA
B 5-4.8000**
|
C 5-2.6000
 |
E 5 1.0000
 |
A 5 3.6000
 ||
D 5 4.8000
  |

ComparisonDifferenceStandard Errorq StatTable qSignificanceLower 95%Upper 95%Result
D - A 1.2000 2.6306 0.4562 2.6510 0.9732-5.7738 8.1738
E - A-2.6000 2.6306 0.9884 2.6510 0.7226-9.5738 4.3738
C - A-6.2000 2.6306 2.3569 2.6510 0.0902-13.1738 0.7738
B - A-8.4000 2.6306 3.1932 2.6510 0.0157-15.3738-1.4262**

Homogeneous Subsets:
Group 1: B
Pooled mean-4.8000
95% Confidence Interval-8.6801 <>-0.9199
Group 2: C E A
Pooled mean 0.6667
95% Confidence Interval-1.5735 <> 2.9069
Group 3: A D
Pooled mean 4.2000
95% Confidence Interval 1.4563 <> 6.9437
Between Homogeneous subsets:
Group 2 - Group 1
Difference 5.4667
95% Confidence Interval-0.2274 <> 11.1607
Group 3 - Group 2
Difference 3.5333
95% Confidence Interval-0.9682 <> 8.0349