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#Statplus in excel how to
#Statplus in excel free

This is not statistically significant at alpha level 0.05. The p-value for watering frequency was 0.975975.The p-value for the interaction between watering frequency and sunlight exposure was 0.310898.

The last table shows the result of the two-way ANOVA.

The average height of all plants that received high sunlight was 5.55 inches.

The average height of all plants that were watered weekly was 5.15 inches.

The average height of all plants that were watered daily was 5.115 inches.

The average height of plants that were watered weekly and given low sunlight was 5.22 inches.

The average height of plants that were watered daily but given no sunlight was 4.14 inches.

The first three tables show summary statistics for each group. Once we click OK, the output of the two-way ANOVA will appear:

Output Range: Choose a cell where you would like the output of the two-way ANOVA to appear.

Alpha: Choose a significance level to use.

Rows per sample: Type “5” because there are 5 plants in each sample.

Input Range: Select the cell range where our data lies, including the headings.

If instead we only grew one plant under each combination of conditions, we would use “without replication” but our sample size would be much smaller. For example, there were multiple plants that were grown with no sunlight exposure and daily watering. In this context, “replication” refers to having multiple observations in each group. Select the option that says Anova: Two-Factor With Replication, then click OK. Choose Anova: Two-Factor With Replication

#Statplus in excel free

If you don’t see this as an option, you need to first load the free Data Analysis Toolpak.Ģ. Step 1: Select the Data Analysis Toolpak. We can use the following steps to perform a two-way ANOVA on this data: For example, there were five plants grown with daily watering and no sunlight and their heights after two months were 4.8 inches, 4.4 inches, 3.2 inches, 3.9 inches, and 4.4 inches: In the table above, we see that there were five plants grown under each combination of conditions. After two months, she records the height of each plant. She plants 40 seeds and lets them grow for two months under different conditions for sunlight exposure and watering frequency. Example: Two Way ANOVA in ExcelĪ botanist wants to know whether or not plant growth is influenced by sunlight exposure and watering frequency.

#Statplus in excel how to

This tutorial explains how to perform a two-way ANOVA in Excel. A two-way ANOVA (“analysis of variance”) is used to determine whether or not there is a statistically significant difference between the means of three or more independent groups that have been split on two factors.