First 3 Yrs	Second 3 Yrs		6-Year Period
JCI SLOPE	15.37068205	11.85587468		JCI SLOPE	19.84342
SLOPE F	3.065983286	2.270873809		SLOPE F	5.248024
SLOPE ^GSPC	1554.045663	1450.451902		SLOPE ^GSPC	1165.973
SLOPE COST	93.31847879	179.7357057		SLOPE COST	47.22581

Compare the result of beta for the first 3 years to the result of the second three years and to the beta result of the entire 6-year period.

o What conclusions can you draw (e.g., have they changed, how, why, etc.)? o What interesting points were observed? o What is the best period to estimate beta? Explain why in 1-2 pages.