You are using an independent samples t-test to compare two groups. The first group
has 10 people in it, a mean of 100 and a standard deviation of 5. The second group
has 18 people in it, a mean of 120, and a standard deviation of 3. What is the t-crit
score for this study? Assume alpha = .05, two tailed.
2.228
2.262
2.110
2.052

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x