Andrea conducted an experiment comparing number of helping behaviors of individividuals who just passed a test to those individuals who just failed a test. Using a sample of 27 participants per group, she found that the mean number of times for those who just passed was 19 whereas for those who failed it was 1. Andrea estimated the population standard deviation to be 6. (Use a = .05, two-tailed) 1. What is the effect of this study?
0.25
0.33
0.83
0.50

2. What is the power of this study?

3. Using an effect size of 0.60 ( and a=.05) how many total participants would Andrea need to obtain a power of .94?

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation:

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).