The mean of a certain production process in known to be 50 with a standard deviation of 2.5. The production manager may welcome any change is mean value towards higher side but would like to safeguard against decreasing value of mean.He takes a sample of 12 items that gives a mean value of 48.5. What inference should the manager take for the production process on the basis of sample results?
Use 5 per cent level of significance for the purpose
Answers
Answered by
0
Answer:
okkkkkkkkkkkkkkkkkkkkk I will do &send u
Similar questions