References about this question: The t Test for Independent Means; The Distribution of Differences between Means; Estimating the Population Variance; Hypothesis Testing with a t Test for Independent Means; Assumptions of the t Test for Independent Means; Effect Size and Power for the t Test for Independent Means

Question: You conduct research in which you want to know if smoking marijuana really does make someone more creative.You test this hypothesis on two groups of students volunteering for the project.The first group smokes just before painting whatever comes to mind; the second group smokes regular tobacco before painting. The paintings are scored from an art critic on a scale from 1 to 10 (in order of increasing quality) and are as follows:

Marijuana group: 9, 2 and 5

Tobacco group: 7,6,2,3 and 8

Use a .05 level of significance. What is ²?

Group of answer choices:

8.58

9.58

6.7

12.33

5

In the experiment above, the estimated variance of the distribution of means representing the marijuana smokers is...

8.58

9.58

2.86

1.72

1.92

In the experiment above, what is df for the group of marijuana smokers?

2

3

4

5

6

In the experiment above, what is ²?

4.58

6.22

2.10

9.7

9.12

In the experiment above, what is ?

2.11

3.11

3.02

1.45

2.14

In the experiment above, what is ?

2

4

5

6

8

In the experiment above, what is ?

2.132

3.143

2.015

1.943

1.012

In the experiment above, what is the value of t?

.06

1.09

2.3

2.03

3.11

In the experiment above, what do you conclude?

Marijuana makes you more creative

Marijuana makes you less creative

We have failed to find evidence in support of the hypothesis that marijuana makes one more creative

There is strong evidence that marijuana changes the creativity of the individual

Dude, everyone knows smoking weed makes you more creative.Who needs research?