Could someone show how to arrive at the solution to these?

[LeonWalras]

Questions (all) in the image below:

Thank you in advance :)
Leon

[startz]

This looks like you're asking someone to do your homework for you. What have you done so far and where did you get stuck?

[CharlieEVIEWS]

I would advise: Make a list of all the formulas you can find in your lecture notes or the first few chapters of an introductory textbook such as Gujuarati. Then through (extremely) simple algebra, re-arrange the terms to solve for the things youre missing. You have all of the information necessary provided in the table given in the question.

[LeonWalras]

This looks like you're asking someone to do your homework for you. What have you done so far and where did you get stuck?

It's not homework, but questions from a past exam paper :). I'm mainly stuck on getting the standard error for a. I think I can work out the rest.

[startz]

Begin by writing down the formula for the t-statistic. That should get you the first couple of questions.

[LeonWalras]

Begin by writing down the formula for the t-statistic. That should get you the first couple of questions.

Got it. Thank you :)