An article in the Milwaukee Journal Sentinel stated that the students in the Wisconsin state university system take 4.5 years, on average, to finish their undergraduate degrees. Suppose you believe...

An article in the
Milwaukee Journal Sentinel
stated that the students in the Wisconsin state university system take 4.5 years, on average, to finish their undergraduate degrees. Suppose you believe that the mean time is longer. You conduct a survey of 49 students and obtain a sample mean of 5.1 years with a sample standard deviation of 1.2 years. Do the data support your claim at the 1% level?