A manufacturer of chocolate chips would like to know whether
     A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 411 gram setting. It is believed that the machine is underfilling the bags. A 201 bag sample had a mean of 409 grams with a variance of 729. A level of significance of 0.02 will be used. State the hypotheses. Assume the population is normally distributed. HYPOTHESES Enter the hypotheses:  H0: Ha:  
  
  Solution
Let mu be the population mean
Ho: mu=411
Ha: mu not equal to 411

