Four individuals participate Each subject was placed in a stressful situation on three different occasions. Each time a different method was used to reduce the stress of the subject. The response variable is the amount of decrease in stress level measured before and after application of treatment. The results were the following: You can assume that the underlying populations are normally distributed with equal variances. Treatment
Subject A B C
1 16 26 22
2 16 20 23
3 17 21 22
4 28 29 36

Required:
Can we conclude from this data that the three methods differ in effectiveness?

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

there is no picture in order for this question to be answered

answer: the up tack or falsum is a constant symbol used to represent a logical constant denoting "false" in logic.