An investment advisory company studied funds available on the
market: Large cap, mid-cap, and small-cap. The company randomly
selected some funds and measured their 1-year return rate
(2011-2012) and 3-year return rate (2011-2014), respectively. Data
is supplied in both Minitab and Excel format.

Your manager wants you to compare the three types of funds in
terms of average 1-year return rate. Is there any difference? He
demands the five-step procedure. Use significance level of 0.01.