Listed below are numbers of registered pleasure boats in Florida (tens of thousands) and the numbers of manatee fatalities from encounters with boats in Florida for each of several recent years. The values are from Data Set 10 "Manatee Deaths" in Appendix B. Is there sufficient evidence to conclude that there is a linear correlation between numbers of registered pleasure boats and numbers of manatee boat fatalities?

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99 999 Pleasure Boats 97 95 90 90 87 90 90 90 9783 88 81 Manatee Fatalities 92 73 68 YEAR 1991 1992 1993 1994 1995 DEATHS 53 38 35 49 42 BOATS 68 68 POP 13.3 13.5 13.7 14.0 14.3 WATER TEMP 71.9 70.4 70.5 71.7 70.9 70 71