Question

Manatees are large, gentle, slow-moving creatures found along the coast of Florida. Many manatees are injured or killed by boats. below contains data on the number of boats registered in Florida (in thousands) and the number of manatees killed by boats for the years between 1977 and 2013. (data are distorted):

YEAR	BOATS	MANATEES	YEAR	BOATS	MANATEES	YEAR	BOATS	MANATEES
1977	447	12	1989	710	50	2001	943	82
1978	459	21	1990	717	46	2002	962	95
1979	480	24	1991	683	54	2003	979	72
1980	500	15	1992	679	38	2004	983	70
1981	514	25	1993	680	36	2005	1011	80
1982	511	21	1994	694	48	2006	1025	92
1983	526	15	1995	712	41	2007	1026	73
1984	558	35	1996	733	59	2008	1011	89
1985	586	34	1997	753	55	2009	983	96
1986	613	33	1998	808	66	2010	943	83
1987	645	40	1999	829	81	2011	924	89
1988	673	44	2000	880	78	2012	903	81	2013	913	70

(a) Find the correlation r (±±0.001)

r =

(b) Find the equation of the least-squares line (±±0.001) for predicting manatees killed from thousands of boats registered.

y^ = _+_ x

(c) What would you predict (±0.1) number of manatees killed by boats to be if there are 900,000 boats registered?

(d) Predict (±0.1) manatee deaths if there were no boats registered in Florida.

Answer 1

Thank you!!!