Please provide an explanation as to how we arrived at answer C for question 3. I got A first , then I got B finally.
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Please provide an explanation as to how we arrived at answer C for question 3. I got A first , then I got B finally.
Ashish,
You are right. I have taken the following equation:
Sales = -180 + 6.09 * (T) + 1.05 PS + 0.00015 * GDP
and plugged in:
Temperature in Summer = 42 degree Celsius
Prior year sales = 3000 million Rupees
Nominal increase in GDP = 6600X1000 million Rupees
The answer is: 4395.78 ~ 4396 i.e. B
Q6 Ans B:
First find out R squared which is equal to SSR/SST
R squared = 6000/7000 = 0.857
(1 – RadjXRadj) = (1 – RXR) * (n-1)/(n-k-1)
= (1-0.857) * (18-1)/(18-3-1) = 0.143 * 17/14
Adjusted R square = 0.8263
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Today's Question (Questions and answers provided by Knowledge Varsity)
Q7. Which of the following is most likely the value of variable A in the ANOVA table?
A. 3
B. 1
C. 17
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The most likely value of variable A in the ANOVA table is:
a)3
There are three independent variables explaining the variation in the dependent variable.
Q7 Ans A:
The degree of freedom for regression item in the ANOVA table is equal to the number of independent variables (represented as K). Here it will be equal to 3.
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Today's Question (Questions and answers provided by Knowledge Varsity)
Q8. Which of the following is most likely the value of variable B in the ANOVA table?
A. 3
B. 14
C. 0
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Q8: B
I agree with Ketan. The answer is B or 14.
I was looking forward to revision on other topics also.
Q8 Ans B:
The degree of freedom for residual item in the ANOVA table is equal to n-k-1,
where n is the number of observation
k is the number of independent variables
For the total item degree of freedom is n-1, since the value is given as 17 => n =18
Hence degree of freedom for residual will be n-k-1 = 18-3-1 = 14
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Today's Question (Questions and answers provided by Knowledge Varsity)
Q9. Which of the following is most likely the value of variable C in the ANOVA table?
A. 2000
B. 6000
C. 353
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