Can you help me with ANOVA

[mbrother11]

I am just starting a statistics class which requires us to use Megastat.
I am doing Analysis of Variance (ANOVA) on what is a really simple
group of data. I am getting the following result as my p-value from ANOVA: 1.38E-05, which I assume means I've made an error of some kind, but for the life of me I can't figure out what I could be doing wrong.
I highlight the data and click on the ANOVA dialog box, and get that ridiculous value (which, by the way, is highlighted in yellow on my output sheet).

 

[mtb'r]

my p-value from ANOVA: 1.38E-05

1.38E-05 = 1.38 x 10^-5, or 0.0000138

Your p-value is essentially zero. If p is low, Ho (null hypothesis) must go. Usually Ho is that there is no difference between your two sets of data. With p low, you should be confident that your two data sets are indeed different.

But, that's a lesson for another forum. If you doubt Excel's ANOVA result, you should test your data with another piece of stat software, like MINITAB.