Value at the point of production does not necessarily translate into value at the point of consumption. Likewise, Lean Six Sigma initiatives focused on the factory floor do not ensure that the end user is […]
Remeber, that to reject a null hypothesis says that we do not have enough information (proof) to accept it. You have to keep in mind that this is a probablistic statement. Too often, significance tests are treated as if they were incontrovertible truth when in fact they are not. You may accept a null hypothesis when you shouldn’t and you may re…[Read more]
When setting a p level keep in mind what “rejecting the null hypothesis” really means. It means that you do not have sufficient information to accept the hypothesis. This is not quite as strong as “rejecting” a null hypothesis. Unfortunately, too many statistics users do not understand this and the “rejection” becomes a lot stronger than it re…[Read more]
Customer satisfaction is the wrong metric to use. A better more robust metric is customer value. If you send me your email I can give you some information on customer value that will make your work better and more powerful.