1 The observed value of the Fstatistic is given on the print
1. The observed value of the F-statistic is given on the printout as 8.13. What are the degrees of freedom for this F-statistic?
a. 19 numerator, 4 denominator
b. 4 numerator, 19 denominator
c. 15 numerator, 19 denominator
d. 4 numerator, 15 denominator
2. Of the following values of , which is the smallest for which the regression model as a whole is significant?
a. 0.05
b. 0.01
c. 0.0001
d. 0.00005
Solution
The formula for the F-statistic =(explained variance)/(unexplained variance)
Let n=Total sample size
k=number of sample
then the numerator degree of freedom is k-1
and the denominator degree of freedom is n-k
Just see the data of the option to calculate the numerator and denominator degree of freedom
b)The the smallest for which the regression model as a whole is significant is .01 OPTION B
