Use the dataset WAGE2.dta (or the corresponding spreadsheet). Run a regression of the log of wage on the following explanatory variables: educ, exper, tenure and IQ. (a) What is the 99 percent confidence interval for educ coefficient?
(b) What is the p-value for the t-test examining the hypothesis that a year of education only yields a
2 percent higher salary than getting a year of experience at the same firm? (N. B. Tenure increases
here too!)
(c) What is the t-statistic for the hypothesis that a year of education has the same effect on wage
growth as 10 extra IQ points?
(d) What is the F-statistic for the joint significance test for educ and IQ?

data linked

answer:      

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi