Using the regression results in column (1), is the college-high school earnings difference estimated from this regression statistically significant at the 5% level? use an appropriate statistical test to explain your answer. show your work. (b) using the regression results in column (1), is the male-female earnings difference estimated from this regression statistically significant at the 5% level? use an appropriate statistical test to explain your answer. show your work. (c) using the regression results in column (2), is age an important determinant of earnings? use an appropriate statistical test to explain your answer. show your work.

where is the rest of the

step-by-step explanation:

the answer is simply just 6n add the two together as they have an n

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

the answer is 48m^2!

step-by-step explanation: