For an independent-measures study, the data show an 8-point diff
What is the pooled variance for the following two samples?
Sample 1: n = 8 and SS = 168
Sample 2: n = 6 and SS = 120
erence between the two treatment means and a pooled variance (sp2) of 4.
Given this information, what is the value of Cohen’s d?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =

Which point has an coordinates of (2,0) ? a