Aresearcher has participants rate the likability of a sexually promiscuous person described in a vignette as being male (n = 20) or female (n = 12). the mean likability ratings in each group were 4.0. if the null hypothesis is that there is no difference in likability ratings, then do likability ratings differ at a 0.05 level of significance? a. yes, this result is significant, p < 0.05. b. no, this result is not significant, t(30) = 0. c. no, this result is not significant, t(30) = 1.00. d. there is not enough information to answer this question, because the variance in each sample is not given.

answer: fdahbeahbehth

step-by-step explanation:

true? is that what you're asking or do you mean something else?

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be