Interpreting a Computer Display. In Exercises 9–12, refer to the display obtained by using the paire

velinariojepvg

velinariojepvg

Answered question

2022-05-14

Interpreting a Computer Display. In Exercises 9–12, refer to the display obtained by using the paired data consisting of Florida registered boats (tens of thousands) and numbers of manatee deaths from encounters with boats in Florida for different recent years (from Data Set 10 in Appendix B). Along with the paired boat/manatee sample data, Stat-Crunch was also given the value of 85 (tens of thousands) boats to be used for predicting manatee fatalities.
StatCrunch Manatees = -49.048987 + 1.4062442 Boats
Sample size: 24
R (correlation ooefficient) = 0.85014394
Estimate of error standard deviation: 9.6605284
Predicted values:
X value Pred Y s.e.(Pred. y) 95% C.I. for mean 95% P.I. for new
85 70.481772 85 1.9724935(66.391071, 74.572473)(50.033706, 90.929839)

Answer & Explanation

taweirrvb

taweirrvb

Beginner2022-05-15Added 21 answers

The predicted value for the number of manatee fatalities is 70.4818 with boats as 85.
Predicted value:
From the Stat Crunch output, the best-predicted value is 70.4818 for
x=85.
Thus, the best-predicted value of the number of manatee fatalities resulting from encounters with 85 boats is 70.5.

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