Answer to Question #266970 in Statistics and Probability for fredrick

Question

A company has been selling production machinery, the existing design is model A and a new model has just come out, model B. the designer claims that model B produces more efficiently than model A. However the general manager of the company wants this to be proved in actual usage by companies to whom the machinery is supplied. Therefore it was arranged to have several customers try model B and model A under precisely similar conditions for determining how many units each model produce in an hour. The trial was conducted in seven customers’ plants. However one trial of model A had to be discarded. This left the management with six trials of model A, to compare with seven trials of model B.

 

Model A

176

180

181

184

187

190

 

 

 

 

 

 

 

 

 

Model B

185

187

187

190

192

194

195

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On the basis of the above sample information will you consider model B superior than model A?