a manufacturer wants to increase the shelf life of a line of cake mixes. past records indicate that the average shelf life of the mix is 216 days.

a manufacturer wants to increase the shelf life of a line of cake mixes. past records indicate that the average shelf life of the mix is 216 days. after a revised mix has been developed, a sample of nine boxes of cake mix gave these shelf lives (in days): 215, 217, 218, 219, 216, 217, 217, 218, and 218. using a= .025, has the shelf life of the cake mix increased?

  1. Start by sharing the instructions of your paper with us  
  2. And then follow the progressive flow.
  3. Have an issue, chat with us now

Regards,

Cathy, CS.