Problem 2: A researcher wants to see if a weight loss program is effective by measuring how much weight people lose when following the program. She measures the weight of 8 randomly selected women before and after the program (the below table). Is there evidence, at a 5% significance level, that the weight loss program is effective? -mn before Use "Weight Before-Weight After" (in that order) to prepare your test. Is this an (upper/Iower/two) hypothesis test