The data show the chest size and weight of several bears. Find the regression equation, letting chest size be the independent (x) variable. Then find the best predicted weight of a bear with a chest size of 50 inches. Is the result close to the actual weight of 407 pounds? Use a significance level of 0.05.
1 answer:
Answer:
Kindly go through the explanation for the answer.
Step-by-step explanation:
From the above calculated value we get the value are as:
n 6
sum(XY) 137925.00
sum(X) 278.00
sum(Y) 2954.00
sum(X^2) 12974.00
sum(Y^2) 1467334.00
b 11.3179
a -32.0607
Formula for regression equation are as:
y = -32.1 + 11.3x
when actual weight = 50
y = -32.1 + 11.3 X 50
= 532.9
The difference between the result and the 407 is 532.9 - 407 = 125.9, hence the result is very much different .
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