College students and drinking habits: a public health official is studying differences in drinking habits among students at two different universities. they collect a random sample of students independently from each of the two universities and ask each student how many alcoholic drinks they consumed in the previous week. sample statistics: size(n) mean (x) sd(s)sample1 40 6.9 2.3sample 2 49 5.7 1.9
the official conducts a two -sample t-test to determine whether these data provide significant evidence that students at university 1 drink more than students at university 2.
the test statistics is t=2.64 with a p-value 0.005.

which of the following is an appropriate conclusion? a) the samples provide significant evidence that students at university 1 drink more than students at university 2.

b) the samples do not provide statistically significant evidence.

c) we ca not use the t-test in this case because the variables (number of drinks) are likely skewed to the right at each university.

Match the following terms with their definitions. 1. bisector of a segment ray ba and ray bc are opposite rays if a, b, and c are collinear and b (the endpoint of both rays) is between a and c. 2. opposite rays a ray, , is the set of points beginning at point a and going infinitely in the direction of point b. 3. collinear points a line or segment that intersects the segment at its midpoint. 4. betweenness of points a set of two or more points all on the same line. 5. ray the distance between the endpoints of a segment. 6. space point b is between a and c if a, b, and c are collinear and the equation ab + bc = ac is true, where ab, bc, and ac are the distances between points a and b, b and c, and a and c, respectively. 7. midpoint of a segment a set of two or more points all on the same plane. 8. coplanar points the point on a segment that divides the segment into two equal segments. 9. length of a segment the set of all possible points. 10. line segment the set of two different endpoints and all points between them.

The triangles are similar. what is the value of x? show your work.

I’m really confused and need your assist me with this question i’ve never been taught