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

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Statistics

To predict a bear’s weight, data was taken from54 anesthetized bears on theirage, gender (M=1, F=2), head width, necksize,  overall 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

     0.526

0.225

GENDER

-12.186

11.503

HEADWTH

   -0.413

5.041

NECK

    3.811

2.607

LENGTH

   -0.463

0.914

CHEST

     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)  

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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