An experimenter randomly divided a group of volunteers into two groups. one group fasted for 24 hours and the other for 48 hours. scores below represent the number of ounces of nutrition consumed during the first 10 minutes after the fast. was there a difference in the amount of nutrition needed after the fast between the two groups? select the correct test, perform the test, and interpret the results.

24 hour 48 hour
26 18
35 24
23 16
30 17
14
independent samples t-test was not significant (t [7] = 3.59, p > .05). there was no difference.

an independent samples t-test was significant (t [7] = 3.59, p < .01). those who fasted for 48 hours needed less nutrition than those who fasted for 24 hours.

a paired samples t-test was significant, ( t [3] = 7.08, p < .01). those who fasted for 48 hours needed less nutrition than those who fasted for 24 hours.

a pearson's product moment correlation r shows a relationship (r [7] = .86, p < .05).

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!

$25 becasue a 10 increase would make it from 80 to 50

answer is  

d.

a circle

i got it down for you chief.