Answer to Question #325665 in Statistics and Probability for Hon

Question

A study was made of a sample of 25 records of patients seen at a chronic disease hospital

on an outpatient basis. The mean number of outpatient visits per patient was 4.8, and the

sample standard deviation was 2. Can it be concluded from these data that the population

mean is greater than four visits per patient? Let the probability of committing a type I error

be 0.05. What assumptions are necessary