To predict a bears weight, data was taken from 5 4 anesthetized bears ...

To predict a bearâ€™s weight, data was taken from 54 anesthetized bears on their age, gender (M=1,...

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Statistics

To predict a bearâ€™s weight, data was taken from54 anesthetized bears on theirage, gender (M=1, F=2), head width_, necksize,_Â Âoverall length, and chest size.
ANOVA
df
SS
Regression
6
741937.3181
Residual
47
44346.0152
Total
53
786283.3333
Coefficients
Standard Error
Intercept
-209.575
39.453
AGE
Â Â Â Â 0.526
0.225
GENDER
-12.186
11.503
HEADWTH
Â Â -0.413
5.041
NECK
Â Â Â 3.811
2.607
LENGTH
Â Â -0.463
0.914
CHEST
Â Â Â Â 9.459
1.443
Use above data to construct a 95% confidence intervalfor the variable ' AGE' and answer following:
Name the critical value needed to compute theerror
Compute the Margin of Error (3 decimalplaces)Â Â
Name the lower limit of the confidence interval (3decimal places)
Name the upper limit of the confidence interval (3decimal places)
What percent of variation(1 decimal place) in a bear'sweight is NOT explained by the combination of variables in theregression equation?

Answer & Explanation Solved by verified expert

4.0 Ratings (628 Votes)

Critical valueThetotal number of observations n is given byThe confidence level c is 095 sothe significance level is 1 095 005At thesignificance level 005 and degrees of freedom See Answer

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ANOVA
	df	SS
Regression	6	741937.3181
Residual	47	44346.0152
Total	53	786283.3333

	*Coefficients*	*Standard Error*
Intercept	-209.575	39.453
AGE	Â Â Â Â 0.526	0.225
GENDER	-12.186	11.503
HEADWTH	Â Â -0.413	5.041
NECK	Â Â Â 3.811	2.607
LENGTH	Â Â -0.463	0.914
CHEST	Â Â Â Â 9.459	1.443