main

prev        

Statement of a problem № m1272

        next    

Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time during a week. A sample of 18 watches provided the following gains (1) or losses (2) in seconds per week.  Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the .05 significance level. Estimate thep-value.




New search. (Also 1294 free access solutions)