SOLUTION: 12.52 Below are average gestation days and longevity data for 22 animals. (a) Make a scatter plot. (b) Find the correlation coefficient and interpret it. (c) Test the correlat

Algebra ->  Probability-and-statistics -> SOLUTION: 12.52 Below are average gestation days and longevity data for 22 animals. (a) Make a scatter plot. (b) Find the correlation coefficient and interpret it. (c) Test the correlat      Log On


   

Question 324759: 12.52 Below are average gestation days and longevity data for 22 animals.
(a) Make a scatter plot. (b) Find the correlation coefficient and interpret it.
(c) Test the correlation coefficient for significance, clearly stating the
degrees of freedom. (Data are from The World Almanac and Book of Facts,
2005, p. 180. Used with permission.)
Gestation
Gestation (days) and Longevity (Years) for Selected Animals (n = 22)

Animal Gestation Longevity

Ass 365 12
Baboon 187 20
Beaver 122 5
Buffalo 278 15
Camel 406 12
Cat 63 12
Dog 61 12
Deer 201 8
Elephant 645 40
Fox 52 7
Guinea Pi 68 4
Horse 330 20
Kangaroo 42 7
Lion 100 15
Moose 240 12
Mouse 21 3
Possum 15 1
Rabbit 31 5
Rhino 450 15
Sheep 154 12
Wolf 63 5
Zebra 365 15
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!

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+xave=193.59+
+yave%09=11.68
+SSXX%09=615439.32
+SSYY%09=1424.77
+SSXY%09=23446.14
b =0.038
b' =16.456
+r%5E2%09=0.627
+r+%09=0.792
+a%09=4.307
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highlight%28y=0.038x%2B4.307%29
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