Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Is this really an EXCEL based book?

While I used the first edition of this book (1997) with delight and great admiration, I was disappointed when I bought the second edition (1999). The main reason was that the authors had indicated in a small top right hand corner on the cover that the book uses PHSTAT as an an Excel Add In. (Not very useful for online purchases). Amazon mentioned PHSTAT in one review as an "Add In included on the CD", ie, it seemed optional. The examples solved in the 1st edition used native Excel methods. In edition 2, they were solved using PHSTAT. All screen captures, worksheets, etc, were in PHSTAT. If one does not wish to use PHSTAT, the second edition would not be useful at all. It would have been leading (Opposite of misleading) to entitle the book "Statistics for Managers Using PHSTAT, an Excel Add In". I am hence confused about the number of stars : first edition : 5 and second edition only 1.