Management professors at columbia university examined the relationship between assertiveness and leadership (journal of personality and social psychology, february 2007). the sample was comprised of 388 people enrolled in a full-time mba program. based on answers to a questionnaire, the researchers measured two variables for each subject: assertiveness score (x) and leadership ability score (y). a quadratic regression model was fit to the data with the following results: independent variable b estimate t-value p-valuex 0.57 2.55 0.01x^2 -0.88 -3.97 < 0.01model r^2 = 0.12conduct a test of overall model utility. use a=0.05

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

it’s the first one your welcome

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

600,000,000,000, or 6e14

step-by-step explanation: