Question

6. A fish-processing company is concerned about the shelf life of its new cat food. A random sample in Halifax and another sample in Dartmouth were examined. The results are summarized below. Halifax Dartmouth Sample Size 35 40 Sample Mean (months) 13 11 Sample Standard Deviation 1.44 1.52 Is there a difference in the average shelf life between the two locations? Conduct a hypothesis test 0.05 significance level. Use the critical value/rejection point method.

Answer 1