### Analysis ToolPak

The Analysis-ToolPak add-in is a third party Excel add-in that provides special analysis tools suitable for medium scale statistical analysis.

This add-in provides a number of additional analysis techniques.

This add-in should not be installed unless you are going to use the additional Data Analysis functionality as Excel will take slightly longer to open with this add-in installed.

In Excel 2003 this add-in also provided additional worksheet functions, although in Excel 2007 these were included as standard.

#### Data Analysis

Once you have the Analysis-ToolPak add-in installed an extra button will appear at the on the far right of your Data tab.

This will give you a choice of the following analysis tools:

Anova: Single Factor | Determines if there is a relationship between two data sets by performing an analysis of variance. |

Anova: Two Factor with Replication | Determines if there is a relationship between two data sets by performing an analysis of variance. This includes more than one sample of data for each group. |

Anova: Two-Factor without Replication | Determines if there is a relationship between two data sets by performing an analysis of variance. This does not include more than one sample of data for each group. |

Correlation | Compares two sets of data to determine if there is any relationship between them. |

Covariance | Calculates the average of the product of deviations of values from the means of each data set. |

Descriptive Statistics | Calculates a range of statistical measurements and summarises them into a table. This table includes calculations for: Mean, Standard Error, Median, Mode, Standard Deviation, Sample Variance, Kurtosis, Skewness, Range, Minimum, Maximum, Sum, Count, Largest, Smallest and Confidence Level. |

Exponential Smoothing | Smooths data, weighting more recent data heavier. |

F-Test Two Sample for Variances | Compares the variances between two groups of data. Variance is a measure of how much the values are dispersed around the mean value. |

Fourier Analysis | Discrete Fourier Transform (DFT) or Fast Fourier Transform (FFT) method, including reverse transforms. |

Histogram | Counts occurrences in each of several data bins. |

Moving Average | Calculates a moving average to allow you to smooth out a data series that contains peaks. |

Random Number Generation | Creates a number of several types of random numbers including Uniform, Normal, Bernoulli, Poisson, Patterned and Discrete. |

Rank and Percentile | Creates a list of the numbers ranked from highest to lowest and also provides a percentile value which indicates how an individual number ranks compared to the other numbers. |

Regression | Creates a table of statistics that result from least-squares regression. |

Sampling | Samples a population randomly or periodically. |

T-Test: Paired Two Sample for Means | Paired two-sample students T-Test. |

T-Test: Two Sample assuming equal Variances | Paired two sample T-Test assuming equal means. |

T-Test: Two Sample assuming unequal Variances | Heteroscedastic T-Test ? |

Z-Test: Two Sample for Means | Two sample Z-Test for means with known variances. |

#### Add-in Location

**Microsoft 365** - C:\Program Files\Microsoft Office\Office15\Library\Analysis\PROCDB.XLAM | FUNCRES.XLAM | ANALYS32.DLL**Excel 2019** - C:\Program Files\Microsoft Office\Office15\Library\Analysis\PROCDB.XLAM | FUNCRES.XLAM | ANALYS32.DLL**Excel 2016** - C:\Program Files\Microsoft Office\Office15\Library\Analysis\PROCDB.XLAM | FUNCRES.XLAM | ANALYS32.DLL**Excel 2013** - C:\Program Files\Microsoft Office\Office15\Library\Analysis\PROCDB.XLAM | FUNCRES.XLAM | ANALYS32.DLL

#### Important

There are actually two possible add-ins that can be installed relating to Analysis-ToolPak.

The add-in called **Analysis-ToolPak - VBA** is only needed if you are going to call the worksheet functions from VBA.

In Excel 2003 if you try to use any of these functions without the add-in installed the function will return the **#NAME?** error.

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